Quick answer: Black Toenail Subungual Hematoma Michigan is a common nail condition with multiple causes including trauma, fungal infection, biomechanical pressure, and underlying medical conditions. Treatment depends on the cause: trauma resolves as the nail grows out (6-12 months), fungus needs antifungal therapy, and biomechanical issues need shoe and orthotic correction. Call (810) 206-1402.
Medically reviewed by Dr. Tom Biernacki, DPM · Board-Certified Podiatric Surgeon · Last reviewed: April 2026 · Editorial Policy
The most important clinical decision with Black Toenail Subungual Hematoma Michigan isn’t which treatment to start with — it’s identifying the correct subtype. That changes everything. Call (810) 206-1402.
Quick Answer
Black Toenail 2026: Subungual Hematoma Guide DPM relates to toenail conditions — typically caused by fungal infection or trauma. Most patients improve in 6-12 months for nail regrowth with conservative care. Same-week appointments in Howell + Bloomfield Hills: (810) 206-1402.
Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.
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Medically Reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatrist, Balance Foot & Ankle Specialists, Michigan. Last updated April 2026.
A black toenail — medically a subungual hematoma — is blood pooling under the toenail after trauma, causing the nail to appear dark red, purple, or black. It is one of the most common nail conditions treated by podiatrists and one of the most frequently mismanaged at home. Understanding the cause determines the appropriate treatment: most black toenails from trauma resolve without intervention, but pressure relief may be needed for painful acute hematomas, and any black nail without clear trauma history needs evaluation to exclude subungual melanoma. At Balance Foot & Ankle in Howell and Bloomfield Hills, Michigan, Dr. Tom Biernacki, DPM evaluates all nail discoloration accurately.
Quick Answer: Black Toenail
A black toenail from acute trauma (dropping something on the foot, stubbing the toe) is a subungual hematoma — blood under the nail. Small hematomas (<25% of nail) resolve without treatment. Large, painful acute hematomas (>50% of nail) may benefit from nail trephination (draining the blood) to relieve pressure — ideally within 24–48 hours. Runner’s black toenail from repetitive shoe friction is treated by trimming the nail short and correcting shoe fit. Any black or dark nail that appeared without trauma or is not improving after the nail grows out must be evaluated by a dermatologist or podiatrist to exclude subungual melanoma.
Causes of Black Toenails
Black toenails have several distinct causes with different management approaches:
- Acute traumatic subungual hematoma — Dropping an object on the toe or stubbing; immediate acute blood accumulation; nail may be tender to pressure; nail plate may eventually detach and grow out
- Runner’s black toenail (repetitive microtrauma) — Repeated nail-to-shoe box contact during running; most common in long-distance runners, especially in shoes that are slightly too short or too wide; painless or mildly tender; the 2nd toe (longest in many feet) and 1st toe are most commonly affected
- Sports friction — Soccer, basketball, court sports where the foot slides forward in the shoe; treatment: correct shoe size and lacing
- Toenail fungus with hematoma appearance — Dark discoloration from fungal pigmentation; distinguished from hematoma by chronicity, nail thickening, and absence of trauma
- Subungual melanoma — Malignant melanoma under the toenail; can appear as a dark streak (longitudinal melanonychia) or diffuse pigmentation; does not follow trauma history; must be excluded in any persistent nail darkening without clear cause
Subungual Melanoma: When to Be Concerned
Subungual melanoma is rare but deadly if missed. The hallmark features that should prompt urgent evaluation:
- Dark streak (band) running from the nail base to the tip — longitudinal melanonychia — especially if it is wide (>3mm), irregular, or has multiple colors
- Darkening that spreads from the nail onto the surrounding skin (Hutchinson’s sign) — highly suspicious for melanoma
- Dark nail without any clear traumatic history
- Dark nail that has been present for more than 2–3 nail growth cycles (approximately 12–18 months) without improvement
- Dark nail in skin of color — subungual melanoma is disproportionately common in darker-skinned individuals and is frequently diagnosed late
- Nail that is ulcerated, bleeding, or has a raised mass under it
Treatment of Traumatic Black Toenail
Small hematomas (<25% of nail area): Observation only. The blood will absorb or remain dark as the nail grows out over 6–9 months. No intervention required. Keep the nail trimmed to reduce use.
Large, acutely painful hematomas (>50% nail, extreme pressure pain): Nail trephination — creating a small hole through the nail plate with a heated needle or drill to release the pressure. Must be performed within 24–48 hours for maximum benefit. After this window, the blood begins to coagulate and cannot be drained. The procedure provides immediate pressure relief and is essentially painless when performed correctly.
Runner’s black toenail prevention: Fit running shoes with a full thumb’s width of space beyond the longest toe. Tie laces more firmly to prevent forward foot slide. Trim toenails straight across at or just below the tip of the toe. Wear moisture-wicking socks to reduce friction.
What Happens to the Nail After a Black Toenail
After a traumatic subungual hematoma, the nail may detach (onycholysis) from the nail bed over the following 2–4 weeks as the blood beneath separates the nail from its attachment. This is painless in most cases. The nail typically falls off entirely within 2–3 months, and a new nail grows in beneath it over the following 6–9 months. The new nail may be slightly misshapen or ridged initially but typically normalizes. No intervention is needed for nail detachment after trauma unless there is pain, infection, or significant trauma to the nail bed that requires repair.
Warning Signs
- Spreading redness, warmth, or swelling of the toe — possible infection under a detaching nail
- Dark stripe running along the nail without trauma history — urgent evaluation to exclude subungual melanoma
- Extreme pain that is not improving with elevation and ice — possible subungual abscess or underlying fracture
- Diabetic patient with any nail trauma — urgent evaluation due to infection risk
Black Toenail Evaluation in Michigan
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Dr. Tom Biernacki, DPM at Balance Foot & Ankle evaluates all nail discoloration including subungual hematoma, melanoma screening, and nail care at both our Howell and Bloomfield Hills locations. Call (810) 206-1402 or book online.
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Dr. Tom’s Recommended Products for Toenail Problems
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Our board-certified podiatrists treat this condition at two convenient locations. Same-day appointments often available.
These are products I personally use and recommend to my patients at Balance Foot & Ankle.
- Nail Tek Intensive Therapy II — Restores brittle, discolored, and damaged nails — base coat that strengthens nail plate after trauma or fungal damage
- Kerasal Fungal Nail Renewal — Visibly improves nail appearance for both fungal and non-fungal discoloration within 8 weeks
- Professional Toenail Clipper — Harperton Nail Nipper — Stainless steel curved jaw cuts thick or ingrown toenails cleanly — prevents nail trauma and subungual hematoma
Affiliate disclosure: As an Amazon Associate, Balance Foot & Ankle earns from qualifying purchases. We only recommend products we trust for our own patients.
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Watch: Are Black Toenail Lines & Streaks Safe? [Doctor Treatment] — MichiganFootDoctors YouTube
Max-cushion everyday shoe — podiatrist favorite for walking and running.
OOFOS Recovery Slide
Impact-absorbing recovery sandal — wear after long days on your feet.
As an Amazon Associate, Balance Foot & Ankle earns from qualifying purchases. Product recommendations are based on clinical experience; prices and availability shown above update live from Amazon.
When to See a Podiatrist
If foot or ankle pain has been bothering you for more than a few weeks, home care alone may not be enough. Balance Foot & Ankle offers same-week appointments at our Howell and Bloomfield Hills clinics — no referral needed in most cases. Bring your current shoes and a short list of symptoms and we’ll build you a treatment plan in one visit.
Call Balance Foot & Ankle: (810) 206-1402 · Book online · Offices in Howell & Bloomfield Hills
Pros & Cons of Conservative Care for toenail conditions
Advantages
- ✓ Most cases resolve at home
- ✓ Same-week appointments available
- ✓ Permanent fix exists
Considerations
- ✗ Recurrence common without prevention
- ✗ Diabetics need professional care
Dr. Tom’s Recommended Products for toenail conditions
Affiliate disclosure: As an Amazon Associate, Balance Foot & Ankle earns from qualifying purchases. We only recommend products we use with patients.
Tolcylen Antifungal Solution Dr. Tom’s Pick
Best for: Most effective topical for fungus
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About Your Care Team at Balance Foot & Ankle
Dr. Tom Biernacki, DPM · Board-Certified Foot & Ankle Surgeon. Specializes in conservative-first care, minimally invasive bunion surgery, and complex reconstruction.
Dr. Carl Jay, DPM · Accepting new patients. Specializes in sports medicine, athletic injuries, and routine podiatric care.
Dr. Daria Gutkin, DPM, AACFAS · Accepting new patients. Specializes in surgical reconstruction and pediatric podiatry.
Locations: 4330 E Grand River Ave, Howell, MI 48843 · 43494 Woodward Ave Suite 208, Bloomfield Township, MI 48302
Hours: Mon–Fri 8:00 AM – 5:00 PM · (810) 206-1402
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Dr. Tom Biernacki, DPM is a board-certified podiatrist + Amazon Associate. Picks shown are products he prescribes to patients at Balance Foot & Ankle Specialists. We earn a commission on qualifying purchases at no extra cost to you. All products independently tested + reviewed for 30+ days minimum. Last verified: April 28, 2026.
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When Toenail Issues Become Medical Emergencies
Most toenail problems are cosmetic or mild — but a few warrant urgent podiatrist attention: any black streak that wasn’t caused by trauma (rule out subungual melanoma), rapidly spreading redness (cellulitis or paronychia), throbbing pain that wakes you at night (possible infection or ingrown nail), and any toenail issue in a diabetic patient. We see same-day appointments at Balance Foot & Ankle for these red flags.
For chronic fungus or thickening, FDA-cleared in-office laser treatment now achieves clear-nail rates of 70-80% with no oral medication side effects. Most patients see visible improvement within 6 months.
In-Office Treatment at Balance Foot & Ankle
If home treatment isn’t providing relief for your toenail issues, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.
Same-day appointments available. (810) 206-1402
Doctor Hoy’s Natural Pain Relief Gel
Natural topical pain relief I use in our clinic. Arnica + camphor formula — apply directly to the area 3–4x daily. ($20–25)
Shop Doctor Hoy’s →Frequently Asked Questions
How long does it take a toenail to grow back?
6-12 months for a full big toenail. Smaller toenails 4-6 months. Speed varies with age, circulation, and nutrition.
Will this affect other nails?
Trauma affects only the injured nail. Fungal infection can spread without treatment. Systemic causes affect multiple nails simultaneously.
Should I cover the nail or leave it open?
Cover with a breathable bandage during work or activity. Leave open at night for healing. Keep dry and clean.
Our podiatrists treat the underlying cause, not just the symptom. Same-week appointments at our Howell and Bloomfield Hills, Michigan offices.
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Dr. Tom Biernacki, DPM is a board-certified foot & ankle surgeon (ABFAS & ABPM) at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has made him one of the most-followed foot & ankle educators on YouTube.