It starts as a dull ache at the back of your heel after a run, easy to ignore. Then it’s stiff every morning until you’ve walked around for a few minutes. Then one day you notice it during warmup too, not just after. By the time most patients come in, they’ve been managing around this pain for weeks or months, hoping it would just go away on its own.
Achilles tendinitis rarely does. But it responds very well to the right treatment, especially when it’s caught early.
What Is Achilles Tendinitis?
The Achilles tendon is the thick band of tissue connecting your calf muscles to your heel bone. It’s what lets you push off the ground when you walk, run, or jump, and it absorbs enormous force with every step.
Achilles tendinitis develops when that tendon is overloaded faster than it can repair itself, usually from repetitive strain rather than a single injury. Small areas of damage build up within the tendon fibers, leading to pain, stiffness, and swelling. There are two forms: one affecting the middle portion of the tendon, more common in younger, active runners, and one at the point where the tendon attaches to the heel bone, more common in patients who are less active or have a bone spur contributing to irritation.
What Causes It
The most common trigger is doing too much, too soon. Runners who suddenly increase mileage or intensity, weekend athletes who go from sedentary to sprinting, and anyone who ramps up jumping or hill training without building up gradually are all at higher risk.
Other contributing factors include tight calf muscles, worn-out or unsupportive footwear, flat feet or other biomechanical issues that change how the tendon is loaded, and simply getting older, since tendons lose some elasticity and blood supply over time.
Why Waiting Makes It Worse
Achilles tendinitis has a frustrating pattern: the pain often eases up once you’re moving, only to return afterward or the next morning. That improvement mid-activity convinces a lot of patients to keep pushing through workouts, which is exactly the wrong move.
Continuing to load an already-damaged tendon doesn’t give it a chance to repair. Over time, this can progress from a straightforward inflammatory issue into a more chronic, degenerative condition where the tendon tissue itself breaks down. That’s a much harder problem to reverse, and it raises the risk of a partial or complete tendon rupture, an injury that often requires surgery and months of recovery.
When to See a Podiatrist
See a specialist if:
- Heel or lower calf pain has lasted more than a week or two
- Pain is present first thing in the morning or at the start of activity
- You notice swelling, thickening, or tenderness along the tendon
- Pain is affecting your normal walking or activity level
- You feel a sudden sharp pain or pop, which can signal a tear and needs urgent evaluation
How We Treat Achilles Tendinitis
Most cases respond well to a structured, non-surgical plan. This typically includes activity modification to reduce the load on the tendon while it heals, targeted stretching and eccentric strengthening exercises, which have strong evidence behind them for tendon recovery, and custom orthotics when foot mechanics are contributing to the problem.
For cases that don’t improve with conservative care, we also offer more advanced options, and can walk you through what’s appropriate for your specific case at your evaluation. Read more about our full approach on our Achilles tendinitis treatment page. Surgery is reserved for tendons that don’t respond to non-surgical treatment or for a confirmed rupture.
Don’t Push Through It
Achilles tendinitis is highly treatable, especially early on, but it rewards catching it fast and punishes ignoring it. If you’ve been managing around heel or calf pain for more than a couple of weeks, it’s worth getting it looked at before it becomes a bigger problem.
We see patients throughout Manteca, Tracy, Lathrop, and Stockton, with Saturday appointments available. Schedule your evaluation today.