Mark Reed, DPM

DABFAS FAPWCA

OC Center for Wound Healing & Foot Care -- Dr. Mark Reed  - USC / UCSF

714-528-3668


Achilles Tendonitis

 

The Achilles tendon is the largest tendon in the human body. It is located at the back of the ankle joint and can be felt as a large, cord-like structure attaching to the back of the foot. Since tendons serve to attach muscles to bone, the Achilles tendon also attaches the large calf muscles, the gastrocnemius and soleus, to the back of the heel bone, the calcaneus.

 

A diagram of a person 's ankle showing the achilles tendon and peroneal tendon.

Understanding Achilles Tendonitis



The Achilles tendon bears the most stress of any tendon in the lower leg, making it highly susceptible to injury. It plays a crucial role in balancing, walking, running, and jumping, which puts it under significant strain—especially in high-impact sports like basketball, tennis, football, soccer, and volleyball.


Achilles tendonitis is a common overuse injury, causing inflammation and pain in the tendon. It occurs more frequently in older athletes due to decreased tendon elasticity, but active teenagers can also experience it. Inadequate stretching or a sudden increase in activity often contributes to the condition.


Symptoms & Diagnosis


Patients with Achilles tendonitis typically experience:

Pain and stiffness at the back of the ankle, especially during movement

Swelling or thickening of the tendon

Difficulty walking or running—often relieved by wearing heeled shoes

Tenderness or small bumps along the tendon


A podiatrist will assess symptoms through a physical examination and may recommend imaging like an MRI if a partial or complete tear is suspected.


Treatment & Recovery


Early intervention is key for successful treatment. Most cases respond well to conservative care, including:


Heel lifts & supportive footwear – Reduces strain on the tendon

NSAIDs (e.g., ibuprofen, naproxen) – Eases inflammation and pain

Ice therapy – Helps reduce swelling and discomfort

Stretching & strengthening exercises – Loosens the calf muscles and relieves tendon stress

Activity modification – Switching to low-impact activities (e.g., swimming) until recovery

Physical therapy & custom orthotics – Supports proper foot mechanics and accelerates healing


Severe or chronic cases may require immobilization in a cast or, in rare cases, surgical intervention for a tendon rupture.


🚀 Gradual return to activity is essential! Rushing recovery may result in reinjury, prolonging healing time.


Preventing Achilles Tendonitis


Incorporate proper warm-ups & dynamic stretching

Avoid sudden increases in running or jumping intensity

Wear supportive, well-cushioned footwear

Listen to your body & rest when pain arises


If you’re experiencing persistent Achilles pain, make an appointment for an evaluation and personalized treatment plan. Early intervention ensures a faster, stronger recovery!


DISCLAIMER: MATERIAL ON THIS SITE IS BEING PROVIDED FOR EDUCATIONAL AND INFORMATION PURPOSES AND IS NOT MEANT TO REPLACE THE DIAGNOSIS OR CARE PROVIDED BY YOUR OWN MEDICAL PROFESSIONAL. This information should not be used for diagnosing or treating a health problem or disease or prescribing any medication. Visit a health care professional to proceed with any treatment for a health problem.
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