Key Takeaways
- Achilles tendon pain usually starts as a mild ache after running or activity, then builds into a sharper, more constant pain if it's ignored.
- Continuing to run, hike, or train through Achilles pain almost always makes the underlying tendon damage worse, not better.
- Most cases improve with physical therapy, load management, and activity changes — surgery is only needed for the most severe or long-standing cases.
- Achilles pain that doesn't improve after a week or two of rest, or that comes with sudden, sharp pain or swelling, is a sign to get evaluated rather than wait it out.
- Orthopedic + Fracture Specialists has treated Portland-area runners, hikers, and active adults for over 90 years. We can help you find the right next step, from physical therapy to injection therapy to surgical repair if needed. Request an appointment if your Achilles pain is holding you back.
What's Actually Happening in Your Achilles Tendon
The Achilles tendon is the thick band of tissue connecting your calf muscles to your heel bone, and it's the workhorse behind every step, run, and jump you take. Achilles tendinitis develops when the tendon is repeatedly stressed beyond what it's ready to handle, causing irritation and small areas of damage. If that stress continues without enough time to heal, the condition can progress to Achilles tendinosis, where the tendon fibers begin to break down and heal with scar tissue instead of healthy tendon tissue. Because scar tissue isn't as strong, the tendon often becomes thicker over time, sometimes creating a noticeable bump along the back of the ankle. Pain often begins as a mild ache after running or activity and can gradually become more constant and limiting.
This is one of the most common overuse injuries among Portland's runners, hikers, and generally active adults — and one of the most frequently undertreated, mostly because the early symptoms feel minor enough to shrug off.
Two Types of Achilles Tendon Pain
Not all Achilles pain is the same, and where it shows up matters for treatment:
| Type | Location | Common Cause |
|---|---|---|
| Noninsertional Achilles tendinitis | Fibers in the middle of the tendon | More common in younger, active people who run or train frequently |
| Insertional Achilles tendinitis | Where the tendon attaches to the heel bone | Can occur at any activity level, including in people who are less active |
Why Pushing Through the Pain Backfires
It's tempting to run, hike, or train through a 'tight' or achy Achilles, especially if you have a race, hike, or event on the calendar. But Achilles tendinitis typically results from repetitive stress to the tendon. Continuing that same stress without addressing the underlying overload doesn't give the tendon a chance to heal. Instead, it can progress to Achilles tendinosis, where healthy tendon fibers are gradually replaced by weaker scar tissue. Over time, the tendon becomes thicker but less resilient, making it more vulnerable to partial or complete rupture.
Left unaddressed long enough, a tendon that's been chronically irritated is also at higher risk for a more serious injury: a partial or complete Achilles rupture, which is a very different (and far more disruptive) recovery than tendinitis.
Signs You Should Stop and Get It Checked
- Pain that lingers for more than a week or two, even with rest
- Stiffness that is worse first thing in the morning
- Pain that has shifted from 'only during activity' to 'present even at rest'
- Any sudden, sharp pain or a popping sensation, which can signal a tear
How Achilles Tendinitis Is Treated
The good news is that most Achilles tendon pain responds well to a structured, non-surgical treatment plan. Orthopedic + Fracture Specialists' foot and ankle team typically starts conservatively and escalates only if needed.
- Physical therapy and load management. This is the foundation of treatment for almost everyone. A physical therapy program focused on calf strengthening and controlled loading helps the tendon rebuild its capacity to handle stress, while a temporary reduction in high-impact activity gives inflamed tissue room to calm down.
- Injection therapy. For pain that doesn't settle with therapy alone, targeted injections can help reduce inflammation and manage pain while the tendon continues to heal.
- Surgical repair. Surgery is reserved for tendons that haven't responded to months of conservative care, or for more significant tears. It's a smaller share of cases than most people assume, since the majority of Achilles tendinitis improves without an operation.
Frequently Asked Questions
How long does Achilles tendinitis take to heal?
Mild cases can improve in a matter of weeks with rest and physical therapy, while more chronic cases that have been pushed through for months may take several months of structured rehab to fully resolve.
Can I keep exercising with Achilles tendinitis?
Low-impact activity like swimming or cycling is often fine and even encouraged, but high-impact activities like running should be scaled back or paused until an orthopedic specialist confirms the tendon can handle the load again.
When should I see a foot and ankle doctor near me instead of waiting it out?
If your pain hasn't improved after a week or two of relative rest, or if it's affecting your daily walking, it's time to see a foot and ankle specialist rather than continuing to self-manage.
Is Achilles tendinitis the same as an Achilles tear?
Not exactly. Achilles tendinitis refers to the early, irritated stage of the injury. If the problem continues over time, it can progress to Achilles tendinosis, where the tendon fibers begin to degenerate and heal with scar tissue instead of healthy tendon tissue. This weakened tendon is more prone to chronic pain and, in some cases, rupture.
