Plantar fasciitis is a common cause of heel pain that can make standing and walking uncomfortable, especially in the morning or after long periods of rest. The condition develops when the plantar fascia, a thick band of tissue supporting the arch of the foot, becomes irritated and degenerates over time. PRP injections are used to target this damaged tissue by delivering a concentrated portion of your own platelets directly into the plantar fascia. This may help stimulate collagen repair and support healing in an area with limited blood supply. Some patients experience improved pain and function as the tissue gradually recovers.

Close up of foot with heel pain, representing plantar fasciitis treated with PRP injection

Plantar fasciitis develops when repetitive stress causes microscopic damage to the plantar fascia, a strong connective tissue band that supports the arch of the foot. Over time the tissue may develop small tears, degeneration of collagen fibers, and reduced elasticity. This process can occur in runners, individuals who stand for long periods, or people with abnormal foot mechanics. Rather than a purely inflammatory condition, chronic plantar fasciitis often involves degenerative changes known as plantar fasciosis. The weakened fascia may become thickened and painful, especially during the first steps in the morning. Treatments such as platelet rich plasma aim to stimulate biological repair mechanisms that encourage stronger collagen formation within the damaged tissue.

A PRP injection for plantar fasciitis begins with a blood draw of approximately 30 to 60 milliliters from the patient’s arm. The blood sample is processed in a centrifuge that separates red blood cells from plasma and concentrates platelets in the plasma layer. The resulting platelet rich plasma is placed into a sterile syringe. Many orthopedic physicians use ultrasound imaging to guide the needle to the thickened portion of the plantar fascia where tissue degeneration has occurred. The PRP is injected directly into the damaged fascia to deliver growth factors to the injured area. The procedure typically takes about 20 to 30 minutes and is performed in an outpatient clinic.

Corticosteroid injections and platelet rich plasma injections are both used to treat persistent plantar fasciitis. Steroid injections can provide rapid pain relief by reducing inflammation, but their effects may be temporary and repeated use may weaken connective tissue. PRP works differently by delivering growth factors that support biological tissue repair rather than only suppressing inflammation. Several clinical studies have compared PRP with corticosteroid injections for chronic plantar fasciitis. Some research reports longer lasting improvements in pain and foot function in patients treated with PRP at follow up periods of six to twelve months. Outcomes can vary depending on the severity of tissue degeneration and the PRP preparation method used.

Recovery after PRP treatment for plantar fasciitis usually occurs gradually as tissue healing processes develop within the plantar fascia. Mild soreness may occur during the first one to two weeks following the injection. Many patients begin to notice improvements in heel pain between four and eight weeks after treatment as collagen repair and tissue remodeling occur. Clinical studies have reported continued improvements in foot function for several months following PRP therapy. Physicians often recommend combining PRP treatment with stretching exercises, footwear support, and physical therapy to reduce stress on the plantar fascia and support long term healing.

Find doctors offering platelet rich plasma treatment for plantar fasciitis near you.

This information is educational and not a substitute for professional medical advice. Platelet rich plasma treatments are not FDA approved for all orthopedic uses. Patients should consult a licensed U.S. healthcare professional before pursuing treatment.