Scleroderma and the Foot: Raynaud Phenomenon, Digital Ulcers, and Foot Care

Quick answer: Scleroderma Foot Raynaud Digital Ulcers Foot Care is a common foot/ankle topic that affects many patients. The 2026 evidence-based approach combines proper diagnosis, conservative-first treatment, and escalation only when needed. We treat this regularly at our Howell and Bloomfield Township practices. Call (810) 206-1402.

Quick Answer

Scleroderma (systemic sclerosis) affects the feet through Raynaud’s phenomenon causing painful cold toes, skin thickening that restricts toe movement, digital ulcers from impaired blood flow, calcinosis (calcium deposits under the skin), and joint contractures. Early podiatric intervention with protective footwear, orthotic support, wound prevention strategies, and circulation management helps preserve foot function and prevent serious complications.

Medical Review

Medically reviewed by Dr. Tom Biernacki, DPM — Board-certified podiatrist at Balance Foot & Ankle, Southeast Michigan. Dr. Biernacki manages the foot and ankle complications of scleroderma, working alongside rheumatologists for comprehensive care.

Affiliate disclosure: This page contains affiliate links to products we recommend. We may earn a small commission at no extra cost to you. We only recommend products used in our clinical practice.

Table of Contents

• What Is Scleroderma?
• How Scleroderma Affects the Feet
• Raynaud’s Phenomenon in the Toes
• Skin Thickening and Tightening
• Digital Ulcers on the Toes
• Calcinosis and Calcium Deposits
• Toe and Ankle Joint Contractures
• Managing Circulation Problems
• Wound Prevention and Care
• Footwear for Scleroderma
• Orthotic Support
• Pain Management
• Compression Considerations
• Daily Foot Care Routine
• Most Common Mistake
• Warning Signs of Serious Complications
• Working With Your Medical Team
• Video Guide
• Frequently Asked Questions
• Sources
• Book an Appointment

What Is Scleroderma?

Scleroderma (systemic sclerosis) is a chronic autoimmune connective tissue disease characterized by excessive collagen deposition in the skin and internal organs. The immune system triggers fibroblasts — the cells responsible for producing collagen — to become overactive, creating thickened, hardened skin and fibrotic changes in blood vessels and organs. The disease affects approximately 300,000 Americans, with women diagnosed 4-5 times more frequently than men.

Two main subtypes of scleroderma have different patterns of foot involvement. Limited cutaneous scleroderma (formerly CREST syndrome) primarily affects the skin of the hands, feet, and face, with Raynaud’s phenomenon often the first and most prominent symptom. Diffuse cutaneous scleroderma involves more widespread skin thickening that can extend to the trunk and proximal extremities, with higher rates of internal organ involvement.

Foot involvement in scleroderma is nearly universal but frequently underrecognized. Studies show that 90% of scleroderma patients experience foot problems that impact their daily function and quality of life, yet foot care is often a neglected aspect of their overall disease management. A podiatrist specializing in autoimmune conditions can provide essential care that significantly improves mobility and comfort for scleroderma patients.

How Scleroderma Affects the Feet

Scleroderma attacks the feet through multiple overlapping pathways, creating a cascade of problems that compound each other. Vascular damage from immune-mediated vasculopathy narrows small arteries and arterioles, reducing blood flow to the toes. Skin fibrosis replaces normal elastic skin with rigid, thickened tissue that cannot flex or stretch normally. Joint fibrosis restricts movement at the toe joints, leading to fixed deformities. Soft tissue atrophy reduces the protective fat padding on the sole of the foot. Each of these processes worsens the others, creating a progressive cycle of dysfunction.

The toes are among the most severely affected structures because they are the most distal tissues, receiving the least blood flow and experiencing the greatest exposure to environmental cold. The combination of impaired circulation and thickened, inelastic skin makes the toes extremely vulnerable to ulceration, infection, and tissue loss. Even minor trauma — a tight shoe, a small cut, stubbing a toe — can trigger a wound that takes weeks or months to heal due to inadequate blood supply.

Foot pain in scleroderma comes from multiple sources: ischemic pain from poor circulation (especially during Raynaud’s episodes), mechanical pain from joint contractures and deformities, neuropathic pain from small fiber nerve damage, and inflammatory pain from calcinosis and skin ulceration. Understanding the specific type and source of foot pain guides appropriate treatment selection.

Raynaud’s Phenomenon in the Toes

Raynaud’s phenomenon — episodic vasospasm of small arteries and arterioles triggered by cold exposure or emotional stress — affects virtually all scleroderma patients and is often the first manifestation of the disease, preceding other symptoms by months or years. While Raynaud’s of the fingers receives the most attention, Raynaud’s of the toes is equally common and significantly impacts daily function and quality of life.

During a Raynaud’s episode, the affected toes undergo a characteristic triphasic color change: white (pallor from arterial vasospasm), blue (cyanosis from deoxygenated blood), and red (reactive hyperemia as blood flow returns). Each episode can last minutes to hours and is accompanied by pain, numbness, and tingling. The severity ranges from mild discomfort to excruciating ischemic pain. In severe scleroderma-related Raynaud’s, episodes may be prolonged enough to cause tissue injury (critical digital ischemia).

Managing Raynaud’s in the toes requires a comprehensive approach. Avoidance of cold exposure is fundamental — wear insulated, moisture-wicking socks and warm footwear in cool weather, keep the core body warm (whole-body warming is more effective than warming the feet alone), and avoid handling cold objects. Vasodilator medications (calcium channel blockers like nifedipine, PDE5 inhibitors like sildenafil) reduce the frequency and severity of attacks. For severe cases, prostacyclin infusions or endothelin receptor antagonists (bosentan) may be prescribed by a rheumatologist.

Skin Thickening and Tightening on the Feet

Fibrotic skin changes on the feet create multiple functional challenges. The skin of the toes and dorsal foot becomes tight, shiny, and bound down to underlying structures, losing the natural elasticity needed to accommodate joint movement, shoe pressure, and weight-bearing forces. As skin tightening progresses, the toes may develop fixed flexion contractures as the fibrotic skin physically prevents full extension.

The plantar surface undergoes a different but equally problematic change. The normal fat pad that cushions the ball of the foot and heel thins as fibrosis replaces adipose tissue. This loss of natural shock absorption causes increased pressure on the metatarsal heads and heel, leading to painful calluses, pressure sores, and eventually ulceration. Patients often describe feeling as if they are walking on rocks or pebbles due to the thinned padding beneath bony prominences.

Skin care for fibrotic feet requires daily moisturization with emollients to maintain what skin elasticity remains and prevent painful cracking (fissures). Apply thick, fragrance-free moisturizer immediately after bathing while the skin is damp. Avoid soaking the feet for prolonged periods, as this can paradoxically dry the skin by disrupting the natural lipid barrier. Petroleum-based ointments provide superior moisture retention compared to water-based lotions for severely thickened skin.

Digital Ulcers on the Toes

Digital ulcers are among the most serious foot complications of scleroderma, occurring in approximately 50% of patients at some point during their disease course. These painful wounds develop on the fingertips and toe tips where blood supply is most compromised, at pressure points where shoes contact thickened skin, and over bony prominences where calcinosis or contractures create mechanical pressure.

Scleroderma digital ulcers heal slowly — average healing time is 76 days, compared to 14-21 days for comparable wounds in healthy individuals. The impaired blood supply means the wound bed receives inadequate oxygen, nutrients, and immune cells needed for healing. Infection risk is elevated due to the compromised immune function and poor tissue perfusion. Osteomyelitis (bone infection) can develop in deep ulcers overlying toe joints, potentially requiring amputation.

Prevention is far more effective than treatment. Daily foot inspection for early signs of pressure damage (reddened areas, calluses, small cracks), careful footwear fitting to eliminate pressure points, protective padding over bony prominences, and immediate attention to any skin break all reduce ulcer risk. When ulcers do develop, management includes gentle wound cleansing, appropriate dressings that maintain moisture balance, offloading pressure from the wound site, and systemic vasodilator therapy to maximize blood flow to the healing tissue.

Calcinosis and Calcium Deposits in the Feet

Calcinosis — the deposition of calcium hydroxyapatite crystals in soft tissues — affects approximately 25% of scleroderma patients and is particularly problematic in the feet where weight-bearing forces compress deposits against underlying bone. Calcium deposits range from small, painless nodules to large, rocky masses that erode through the skin, creating chronic draining wounds.

Common locations for foot calcinosis include the toe tips (where they may be mistaken for bone spurs), the plantar surface over the metatarsal heads, around the Achilles tendon insertion, and over the lateral malleolus. Deposits that lie beneath weight-bearing surfaces cause significant mechanical pain and are prone to skin breakdown due to the constant pressure of standing and walking.

Treatment of calcinosis is challenging, as no medical therapy consistently dissolves established deposits. Surgical excision is reserved for deposits that cause significant pain, recurrent skin breakdown, or functional limitation. Conservative management focuses on protecting the overlying skin with cushioned orthotics and footwear modifications, managing any secondary infection when deposits erode through the skin, and using topical wound care for draining calcinotic lesions.

Toe and Ankle Joint Contractures

Progressive fibrosis of the skin, joint capsules, and tendons leads to fixed flexion contractures at the toe joints and limited ankle motion. The metatarsophalangeal joints typically develop claw-toe deformities as the intrinsic muscles weaken and the extensor tendons tighten over the dorsal foot surface. These deformities create prominent pressure points on the tops of the toes and under the metatarsal heads that are extremely vulnerable to ulceration.

Ankle joint fibrosis limits dorsiflexion, making it difficult to achieve the normal heel-to-toe gait pattern. Patients compensate by walking with a shortened stride and a flat-footed landing pattern that increases impact forces on already-compromised tissues. Limited ankle motion also increases fall risk, particularly on uneven surfaces and stairs.

Gentle daily stretching of the toes and ankle is essential to slow the progression of contractures. Passive range-of-motion exercises — manually moving each joint through its available range — maintain whatever flexibility remains. A physical therapist experienced with scleroderma can design a home exercise program tailored to the patient’s specific limitations. Paraffin wax treatments warm and soften the skin before stretching, making the exercises more comfortable and potentially more effective.

Managing Circulation Problems in the Feet

Maintaining the best possible blood flow to the feet is the single most important goal in scleroderma foot care. Every other complication — ulcers, poor wound healing, calcinosis progression, tissue atrophy — is worsened by inadequate circulation. Strategies to maximize foot perfusion combine lifestyle modifications, medications, and environmental controls.

Keep the whole body warm, not just the feet. The vasospastic response in Raynaud’s is triggered by core body temperature drops, so layered clothing and warm indoor temperatures (70-72°F minimum) are essential. Use heated socks, chemical toe warmers, or heated insoles during cold weather exposure. Avoid constrictive footwear and socks that could further impair already-compromised blood flow. Never apply direct heat sources (heating pads, hot water bottles) to the feet — impaired sensation and poor circulation make burns likely.

Smoking cessation is critical. Nicotine is a potent vasoconstrictor that directly worsens Raynaud’s severity and accelerates the vascular damage of scleroderma. Even secondhand smoke exposure can trigger Raynaud’s episodes. Regular gentle exercise (walking, swimming) improves overall cardiovascular fitness and peripheral circulation. Your rheumatologist may prescribe vasodilator medications to supplement these lifestyle measures.

Wound Prevention and Care

Wound prevention is paramount because scleroderma wounds heal poorly and carry significant risk of infection and tissue loss. Inspect your feet daily for any redness, callus buildup, skin cracks, blisters, or color changes. Use a mirror or have a family member help examine the soles and between the toes if limited hand mobility makes self-inspection difficult.

Nail care requires particular attention. Trim toenails straight across to prevent ingrown nails, and avoid cutting too short. Thickened or dystrophic nails should be managed by a podiatrist rather than at home, as improper trimming can easily cause skin injury in patients with impaired healing. Nail fungus should be treated to prevent nail plate thickening that creates pressure on the surrounding skin.

When wounds do occur, seek podiatric care promptly. Do not attempt to manage foot ulcers at home without professional guidance. Even small wounds in scleroderma patients can rapidly deteriorate if not properly managed with appropriate wound dressings, offloading, infection prevention, and vascular optimization.

Footwear Selection for Scleroderma

Proper footwear is a therapeutic intervention for scleroderma patients, not merely a fashion choice. The ideal shoe has a wide, deep toe box that accommodates contracted toes without compression, a soft, seamless interior lining that minimizes friction, excellent insulation for warmth, a cushioned sole that compensates for lost natural fat pad, and adjustable closures that accommodate fluctuating swelling.

Avoid shoes with rigid toe boxes, narrow widths, high heels, or internal seams that could create pressure points. Extra-depth shoes or custom-molded shoes accommodate toe deformities and custom orthotics simultaneously. Lined boots or insulated winter shoes are essential in cold climates to protect against Raynaud’s episodes triggered by cold feet.

Orthotic Support for Scleroderma Feet

Orthotics serve a critical protective function in scleroderma by redistributing weight away from vulnerable areas and providing the cushioning that atrophied fat pads can no longer supply. We recommend PowerStep Pinnacle Insoles as a starting point for scleroderma patients who need daily cushioning and arch support. The cushioned heel and forefoot absorb impact forces that would otherwise be transmitted through thinned plantar tissue to underlying bone, while the arch support stabilizes the midfoot and distributes weight more evenly.

For patients with significant deformity, calcinosis deposits, or a history of plantar ulceration, custom accommodative orthotics provide superior protection. These devices are fabricated from soft, conforming materials with specific offloading modifications built in to protect high-risk areas. A total-contact design distributes pressure across the maximum plantar surface area, reducing peak pressures at any single point.

Pain Management for Scleroderma Foot Pain

We recommend Doctor Hoy’s Natural Pain Relief Gel for managing the daily aching and discomfort of scleroderma feet. Apply to intact skin over painful joints, tender metatarsal heads, or sore Achilles areas. The natural menthol formula provides cooling comfort. Important: apply only to intact skin — never to open wounds, ulcers, or cracked fissures. The clean, gentle formulation is appropriate for scleroderma’s often-sensitive skin.

Compression Considerations in Scleroderma

Compression therapy in scleroderma requires careful consideration because the vascular disease may limit arterial inflow. We recommend DASS Compression Socks only after arterial assessment confirms adequate blood flow (ABI above 0.9). For patients with adequate circulation, mild compression supports venous return and reduces dependent edema. The gentle warmth provided by compression socks may also help prevent Raynaud’s episodes by maintaining foot temperature. Patients with significant arterial disease should avoid compression and instead use warm, insulating socks without compressive properties.

Daily Foot Care Routine for Scleroderma

A consistent daily foot care routine prevents many of the serious complications of scleroderma. Each morning, inspect all surfaces of both feet including between the toes. Apply a thick emollient moisturizer to the entire foot, avoiding between the toes. Put on warm, moisture-wicking socks and supportive shoes with orthotics before walking. Throughout the day, protect feet from cold exposure and avoid walking barefoot. In the evening, wash feet in warm (not hot) water, pat dry thoroughly including between toes, reapply moisturizer, and inspect again for any changes from the morning.

See your podiatrist regularly — every 3-4 months for routine preventive care, or sooner if any new foot problem develops. Regular podiatric visits allow early detection of problems before they become serious, professional callus management to prevent ulceration, nail care to prevent ingrown nails and infections, and ongoing assessment of circulation and foot structure.

Working With Your Medical Team

Scleroderma foot care requires coordination between multiple specialists. Your rheumatologist manages the systemic disease with immunomodulatory medications and vasodilators. Your podiatrist manages the local foot manifestations with orthotics, footwear modifications, wound care, and preventive maintenance. A vascular specialist may be needed for severe digital ischemia unresponsive to medical management. A wound care specialist provides advanced modalities for non-healing ulcers.

Keep all members of your care team informed about your foot status. Report new symptoms, medication changes, or wound developments to both your rheumatologist and podiatrist. The best outcomes in scleroderma foot care occur when all providers communicate and coordinate treatment decisions. Bring your podiatry notes to rheumatology visits and vice versa to ensure everyone is working from the same information.

Video: Foot Care for Systemic Conditions

Watch Dr. Biernacki discuss why we podiatric care for patients with systemic conditions affecting the feet.

Frequently Asked Questions

How does scleroderma affect the feet?

Scleroderma affects the feet through Raynaud’s phenomenon (painful cold toes from vasospasm), skin thickening that restricts toe flexibility, digital ulcers from impaired blood flow, calcinosis (calcium deposits), joint contractures, and loss of protective fat pad cushioning. These combined effects make the feet vulnerable to wounds, infections, and progressive deformity that significantly impact walking and quality of life.

Can scleroderma cause foot ulcers?

Yes, digital ulcers occur in approximately 50% of scleroderma patients. They develop on toe tips where blood supply is most compromised, at pressure points from shoes or deformities, and over calcinosis deposits. Scleroderma ulcers heal slowly (average 76 days) due to impaired blood flow and require professional wound management to prevent infection and tissue loss.

What shoes should I wear with scleroderma?

Choose shoes with a wide, deep toe box for contracted toes, soft seamless interior, excellent insulation for warmth, cushioned sole to replace lost fat padding, and adjustable closures for fluctuating swelling. Avoid narrow shoes, rigid toe boxes, high heels, or shoes with internal seams. Extra-depth therapeutic shoes or custom-molded shoes may be necessary for significant deformity.

How do I manage Raynaud’s in my toes?

Keep your whole body warm (not just feet), wear insulated socks and warm footwear, avoid cold exposure, quit smoking, use heated socks or chemical toe warmers in cold weather, and take vasodilator medications as prescribed by your rheumatologist. Never apply direct heat sources to the feet. Regular gentle exercise improves overall circulation.

Should I see a podiatrist if I have scleroderma?

Absolutely. Regular podiatric care is essential for scleroderma patients. A podiatrist provides preventive foot exams every 3-4 months, professional callus and nail management, orthotic prescriptions for cushioning and pressure redistribution, wound care for ulcers, and footwear guidance. Establishing podiatric care early — before serious complications develop — dramatically improves long-term foot health outcomes.

In-Office Treatment at Balance Foot & Ankle

If home treatment isn’t providing relief for your foot and ankle conditions, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.

Sources

1. Denton CP, Khanna D. “Systemic sclerosis.” The Lancet. 2017;390(10103):1685-1699.
2. Hughes M, Herrick AL. “Digital ulcers in systemic sclerosis.” Rheumatology. 2017;56(1):14-25.
3. Alcacer-Pitarch B, et al. “Foot Health and Scleroderma.” Rheumatology. 2012;51(suppl 3):iii47-iii52.
4. Kowal-Bielecka O, et al. “Update of EULAR recommendations for the treatment of systemic sclerosis.” Annals of the Rheumatic Diseases. 2017;76(8):1327-1339.
5. Sari-Kouzel H, et al. “Foot problems in patients with systemic sclerosis.” Rheumatology. 2001;40(4):410-413.

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