You are in the right place. Dr. Tom Biernacki, DPM, FACFAS — board-certified foot & ankle surgeon with 3,000+ surgeries — explains exactly what PRP injection in foot means and what actually works. Call (810) 206-1402 for a same-day appointment at our Howell or Bloomfield Hills office.
Medically reviewed by Dr. Tom Biernacki, DPM · Board-Certified Podiatric Surgeon · Last reviewed: April 2026 · Editorial Policy
Quick Answer
PRP injection for foot and ankle pain uses a concentrated dose of your own platelets to stimulate healing in chronically damaged tendons and the plantar fascia. It is best for stubborn plantar fasciitis and chronic tendinopathy that has failed conservative care, and improvement develops gradually over 6 weeks to 6 months.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.
â–¶ Watch
What Is PRP and How Does It Work?
Platelet-rich plasma (PRP) is a concentration of platelets prepared from your own blood. Platelets contain hundreds of growth factors—proteins that signal cells to proliferate, differentiate, and lay down new tissue. In normal wound healing, platelets naturally accumulate at injury sites and release these growth factors to initiate repair. PRP concentrates platelets 3–8 times above baseline blood levels and delivers them directly to a chronically degenerated tissue that has failed to heal on its own. The theory: many chronic tendon conditions (plantar fasciitis, Achilles tendinopathy) involve failed healing and degenerative tissue rather than active inflammation, and the concentrated growth factor delivery from PRP can restart the healing cascade where it has stalled.
Conditions That Respond to PRP
Plantar fasciitis—particularly chronic cases that have failed conservative care and failed corticosteroid injection—has the strongest evidence for PRP among foot and ankle conditions. Multiple randomized controlled trials show PRP produces superior long-term pain reduction compared to corticosteroid injection at 3–6 month follow-up, though corticosteroid provides faster short-term relief. PRP is especially valuable for patients who cannot receive corticosteroid injections (diabetes, tendon rupture risk). Mid-portion Achilles tendinopathy is the second best-supported indication—PRP injection combined with eccentric loading produces better outcomes than eccentric loading alone in several studies. Tibialis posterior tendinopathy and peroneal tendinopathy have less evidence but are sometimes treated with PRP in refractory cases. PRP is not indicated for acute injuries, active infections, or joint arthritis.
The Procedure
PRP preparation begins with a blood draw (20–60 mL depending on the system). The blood is centrifuged to separate the platelets from red blood cells and plasma—the platelet-concentrated layer is drawn off and prepared for injection. The entire preparation takes 15–20 minutes. The injection is performed with ultrasound guidance to precisely place the PRP within the degenerated tissue (plantar fascia insertion, mid-portion Achilles). Local anesthetic may be applied, though some protocols avoid it because anesthetics can reduce platelet activation. The injection itself is moderately uncomfortable—similar to a corticosteroid injection. One to three injections are typically administered over 4–6 weeks. Post-injection: patients rest from high-impact activity for 24–72 hours, then resume gradual activity. Soreness for 1–2 weeks after injection is expected and represents normal biological response. Full effect typically takes 6–12 weeks.
Who Is a Good Candidate for Foot or Ankle PRP?
PRP is a second-line option, considered after first-line care has had a fair trial. The best candidates typically have:
- Chronic plantar fasciitis or tendinopathy (Achilles, posterior tibial, or peroneal) lasting more than 3–6 months;
- A clear diagnosis confirmed on exam and ultrasound, with the degeneration localized to a treatable area;
- Failure of conservative care — stretching, orthotics, night splints, eccentric loading, and activity modification;
- A medical reason to avoid cortisone (for example, diabetes or a tendon at risk of rupture), where PRP is an attractive alternative because it stimulates repair rather than suppressing it.
PRP is not appropriate for acute fractures or ruptures, active infection, or joint arthritis, and it is not a substitute for surgery when a tendon is fully torn.
Cost and Insurance
Because PRP for tendon and fascia problems is still classified as investigational by Medicare and most commercial plans, it is generally an out-of-pocket procedure rather than a covered benefit. The total depends on how many injections are recommended and the preparation system used. Coverage and pricing vary by plan and change over time, so we review the expected cost with you before scheduling — call (810) 206-1402 for a clear estimate.
Frequently Asked Questions
Does insurance cover PRP injections for foot pain?
Most insurance plans, including Medicare, do not currently cover PRP injections for foot and ankle conditions. PRP is classified as investigational or experimental by many payers despite growing evidence, and it does not yet have broad insurance approval. Out-of-pocket cost is typically $500–$1,500 per injection depending on the provider and system used. Some FSA/HSA plans cover PRP when it is physician-prescribed for a specific medical condition—check with your plan administrator. The cost-benefit analysis depends on the alternative: if the next step is surgery (plantar fascial release, Achilles debridement), the cost of PRP is often substantially lower than surgical intervention and recovery costs. Ask your podiatrist whether PRP is appropriate for your specific condition and the estimated cost before proceeding.
How long does PRP take to work for plantar fasciitis?
PRP works through a healing mechanism that takes weeks to months, not days. Most patients notice gradual improvement beginning at 4–6 weeks after injection, with maximum benefit at 3–6 months. This is distinct from corticosteroid injection, which provides faster pain relief (within 1–2 weeks) but has shorter-lasting effects. If you have had PRP and feel no improvement at 4 weeks, this is not necessarily treatment failure—the healing process takes time. However, if there is no perceptible improvement at 8–12 weeks, re-evaluation is warranted. Studies comparing PRP to corticosteroid for plantar fasciitis consistently show PRP producing better outcomes at 6 months and beyond, while corticosteroid is superior at 1–3 months. PRP is therefore best suited for patients willing to wait for gradual improvement rather than those seeking immediate relief.
Is PRP better than a cortisone shot for heel pain?
For short-term pain relief (1–3 months), corticosteroid injection provides faster and more complete relief than PRP. For long-term outcomes (6–12 months), PRP produces significantly better pain reduction and function in multiple randomized trials for plantar fasciitis. Corticosteroid also carries risks with repeated use—plantar fascia rupture, fat pad atrophy, thinning of tissue—that limit how many injections can safely be given. PRP, being derived from your own blood, has no such tissue-damaging risks. The practical approach: corticosteroid injection is reasonable for initial injection therapy; if the condition recurs after 1–2 corticosteroid injections, PRP is the better choice for the next injection. For patients with diabetes or high rupture risk, PRP is preferred from the start because corticosteroid worsens glycemic control and weakens tissue.
Medical References & Sources
- PubMed Research — PRP vs Corticosteroid for Plantar Fasciitis RCTs
- PubMed Research — PRP for Achilles Tendinopathy
- American Podiatric Medical Association — Heel Pain Treatment Options
📧 Get Dr. Tom’s Free Lab Test Guide
Discover the 5 lab tests every person over 35 should ask their doctor about — explained in plain English by a board-certified physician.
Dr. Tom Biernacki, DPM is a board-certified podiatric surgeon at Balance Foot & Ankle in Howell and Bloomfield Hills, Michigan. He provides platelet-rich plasma injections for chronic plantar fasciitis, Achilles tendinopathy, and other refractory foot and ankle tendon conditions under ultrasound guidance.
Join 950,000+ Learning About Foot Health
Dr. Tom shares honest medical advice, supplement reviews, and treatment guides you won’t find anywhere else.
Subscribe on YouTube →📍 Located in Michigan?
Our board-certified podiatrists treat this condition at two convenient locations. Same-day appointments often available.
Insurance Accepted
BCBS · Medicare · Aetna · Cigna · United Healthcare · HAP · Priority Health · Humana · View All →
Howell Office
4330 E Grand River Ave
Howell, MI 48843
Get Directions →
Bloomfield Hills Office
43494 Woodward Ave, #208
Bloomfield Hills, MI 48302
Get Directions →
Your Board-Certified Podiatrists
Ready to Get Back on Your Feet?
Same-week appointments available at both locations.
Book Your AppointmentReady to Get Back on Your Feet?
Same-day appointments in Howell + Bloomfield Hills. Most insurance accepted. Dr. Tom Biernacki, DPM & team.
Book Today — Same-Day Appointments Available
Call Now: (810) 206-1402
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 Hills, MI 48302
Hours: Mon–Fri 8:00 AM – 5:00 PM · (810) 206-1402
Visit Balance Foot & Ankle — Same-Day Appointments Available
Our podiatry team serves patients throughout Michigan including Howell, Brighton, and Bloomfield Hills. If you’re dealing with heel pain, ingrown toenails, or a foot injury, we have same-day appointment availability.
Same-day appointments available. (810) 206-1402
Related Conditions
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.