Achilles Tendonitis: Treatment, Exercises and Recovery

That nagging pain and stiffness at the back of your heel, worst with your first steps in the morning and after a run, is the classic signature of Achilles tendonitis, which clinicians now more often call Achilles tendinopathy. The reassuring news is that the large majority of cases improve without surgery. The catch is that the tendon responds to gradually increasing load and to patience, not to rest alone, so knowing what helps makes all the difference.

Table of Contents

• At a Glance

• What Is Achilles Tendonitis?

• What Causes It?

• Achilles Tendonitis Symptoms

• Achilles Tendonitis or Plantar Fasciitis?

• How to Treat Achilles Tendonitis

• The Best Exercises and How to Progress Them

• Building a Daily Connective-Tissue Routine

• How Long Does It Take to Recover?

• When to See a Doctor

• FAQ

At a Glance

• Achilles tendonitis (tendinopathy) is an overuse condition of the tendon at the back of the heel, common in runners and active people in their 40s and 50s.

• Progressive tendon loading is the core treatment. Heel raises, eccentric lowering, and heavy slow resistance can all be effective when the load is gradually increased and matched to your symptoms.

• There are two types: midportion (mid-tendon) and insertional (at the heel bone). They need slightly different exercise approaches.

• Recovery takes time, often three months or more, and steady, progressive loading is what drives it.

• A daily connective-tissue support routine can sit alongside your rehab, applied gently over the area.

What Is Achilles Tendonitis?

The Achilles is the thick, strong tendon connecting your calf muscles to your heel bone, and it takes enormous load every time you walk, run, or jump. Achilles tendonitis, more accurately called Achilles tendinopathy, is a condition in which repeated overload outpaces the tendon's ability to adapt, leading to collagen changes, thickening, and pain.[1]

It comes in two forms, and the distinction matters for treatment. Midportion tendinopathy affects the tendon a few centimetres above the heel. It is treated with progressive loading, which may include eccentric heel drops, traditional heel raises, or heavy slow resistance exercise.[1] Insertional tendinopathy sits right where the tendon meets the heel bone and needs a modified, reduced-compression approach. It is most common in middle-aged, active people, though it can affect anyone.

What Causes It?

Achilles tendinopathy is largely a load problem. The usual triggers are doing too much too soon, a sudden jump in training distance or intensity, tight or weak calf muscles, a change in footwear or running surface, and the natural drop in tendon resilience that comes with age.

It is not purely an overuse issue, though. Other factors can reduce tendon resilience, including diabetes, higher body weight, elevated cholesterol, and some inflammatory conditions. Fluoroquinolone antibiotics such as ciprofloxacin can also cause sudden Achilles tendon pain and raise the risk of rupture; if pain begins while you are taking one, stop loading the tendon and contact your prescriber promptly. (More on that in our guide to Cipro and tendon pain.)

Achilles Tendonitis Symptoms

The hallmark is pain and stiffness at the back of the heel or lower calf, typically worst first thing in the morning or on the first steps after sitting, easing a little as you warm up, then returning after activity. You may notice thickening or a tender lump in the tendon, pain when you flex your foot upward, and discomfort that worsens with running or stairs.

Seek prompt medical care for a possible rupture: a sudden sharp pain or an audible pop at the back of the ankle, often described as feeling kicked, followed by difficulty walking or pushing off the foot, needs urgent assessment rather than rehab.

Achilles Tendonitis or Plantar Fasciitis?

Because both can cause first-step morning pain, the two are easy to confuse, and the location usually gives the clearest clue. Achilles tendinopathy causes pain at the back of the heel or lower calf. Plantar fasciitis usually causes pain under the heel, sometimes spreading into the arch of the foot. Both feel worse on the first steps after rest, so persistent or unclear heel pain is worth having assessed rather than guessed at.

How to Treat Achilles Tendonitis

The strongest treatment evidence supports progressive tendon loading. The goal is to rebuild the calf-and-tendon system's capacity to handle walking, running, and jumping. Eccentric heel drops are one well-studied option, while heavy slow resistance and other progressive heel-raise programmes can produce similarly meaningful improvements.[1][2][3] Complete rest is usually unnecessary, because it reduces the tendon's capacity without preparing it to tolerate activity again.

A large systematic review found no convincing evidence that common add-on treatments outperform exercise alone, which supports exercise as the first-line treatment for at least three months before considering other options.[4] Around that core, temporarily reduce the activities that repeatedly aggravate the tendon without becoming completely inactive. Heat or cold may give short-term comfort, depending on personal preference. Stretching can help when ankle movement is limited, though aggressive calf stretching may irritate insertional tendinopathy. Taping or a temporary heel lift may help selected people, but these are supporting measures rather than the main treatment. One thing to be careful with: corticosteroid should not be injected directly into the Achilles tendon, where it can weaken the tissue, and any injection around the Achilles needs careful specialist assessment and image-guided placement.

The Best Exercises and How to Progress Them

A good programme gradually moves from easier calf loading to heavier, more functional exercise. The right starting point depends on your current strength and how reactive the tendon is.

• Early stage: begin with seated calf raises, supported double-leg heel raises, or calf holds if standing raises are too painful.

• Building strength: progress to slow standing heel raises with the knee straight and then slightly bent, since the two positions load different parts of the calf-and-Achilles system.

• Heavier loading: move towards single-leg raises, or add weight in a backpack, a machine, or a hand-held weight as the exercise becomes easier.

• Return to activity: later stages can introduce faster heel raises, hopping, running, and sport-specific movements once slower strength work is well tolerated.

Aim for a challenging but manageable load at least twice a week, and a physiotherapist can adjust the exercise, resistance, and range of movement to your capacity. For insertional tendinopathy, begin heel raises from floor level and avoid lowering the heel below the forefoot, particularly early on, because deep ankle dorsiflexion compresses the tendon against the heel bone and can aggravate this form.[5]

Some discomfort during loading can be acceptable, but it should stay manageable. If pain or stiffness is clearly worse the following morning and does not settle, reduce the load, range, or number of repetitions.

Building a Daily Connective-Tissue Routine

Loading rehabilitation does the heavy lifting, and many people add a daily step to support the connective-tissue matrix while the tendon rebuilds its strength. Tendons are made primarily of collagen fibres held within a surrounding matrix of glycosaminoglycans and proteoglycans. Glucosamine is one of the building blocks used to produce these matrix molecules, helping support the environment in which collagen fibres are organised and maintained. Laboratory research has also found that glucosamine-containing combinations can stimulate collagen production in tendon cells, while animal research has reported encouraging effects on Achilles tendon healing.

URAH Sporting Cream MSM combines micellar glucosamine, MSM, and Omega-3 in a topical formula developed for active recovery and daily connective-tissue support. Its patented micellar transdermal system, developed in Singapore, carries glucosamine through the skin and into circulation, so it can be applied directly over the area being supported. Preliminary comparative data reported substantially higher blood glucosamine following micellar transdermal application than oral delivery.[6] URAH has more than a decade of real-world use and has been recommended through hospitals and clinics, with more than one million units sold worldwide.

Applied gently over the lower calf and Achilles area once or twice daily, it provides a practical support step around rehabilitation and activity. Human research has not yet established glucosamine as a standalone treatment for Achilles tendinopathy, so progressive loading remains the foundation of recovery.

Explore URAH Sporting Cream MSM, ships worldwide with a 60-day money-back guarantee.

How Long Does It Take to Recover?

Achilles tendinopathy usually improves slowly. Many people need at least three months of consistent loading, while longer-standing cases may take six months or more. Progress is better judged through pain, morning stiffness, calf strength, and activity tolerance than by expecting the tendon to look completely normal on a scan, since many people become pain-free and fully functional while imaging changes remain.

The searches for how to "cure it fast" are understandable, but the most reliable route is to begin an appropriate loading programme, progress it consistently, and avoid repeated spikes in activity that overwhelm the tendon.

When to See a Doctor

See a doctor if the pain is severe, not improving after a few months of good rehab, or interfering with daily life, and seek urgent care for a sudden pop, sharp pain, or inability to push off, which can signal a tendon rupture. A clinician or physiotherapist can confirm whether it is midportion or insertional, tailor the loading programme, and rule out other causes of heel pain.

FAQ

How do you cure Achilles tendonitis fast?

There is no instant cure. The most reliable route is starting an appropriate progressive-loading programme early and staying consistent, while easing off the activity that overloads the tendon. Rushing back tends to prolong it.

What are two signs of Achilles tendonitis?

The two most telltale signs are pain and stiffness at the back of the heel that is worst on the first steps in the morning, and pain that worsens with running, jumping, or stairs. Thickening of the tendon is also common.

What is the best exercise for Achilles tendonitis?

Progressive tendon loading is the core, and it can take several forms: eccentric heel drops, standing heel raises, or heavy slow resistance. Insertional tendinopathy uses the same idea but without lowering the heel below the forefoot.

How long does Achilles tendonitis take to recover?

Usually at least three months of consistent loading, and six months or more for chronic cases. Judge progress by pain, stiffness, strength, and activity tolerance rather than by the scan.

Should I keep running with Achilles tendonitis?

You do not always have to stop completely, but reduce volume and intensity so you are not flaring the tendon, and use the next-morning response as your guide. A physiotherapist can help you set safe limits.

Further Reading

• Cipro and Tendon Pain

• Knee Pain When Running

• Best Muscle and Joint Pain Relief Cream

References

1. Chimenti RL, Neville C, Houck J, Cuddeford T, Carreira D, Martin RL. Achilles Pain, Stiffness, and Muscle Power Deficits: Midportion Achilles Tendinopathy Revision 2024. Journal of Orthopaedic & Sports Physical Therapy. 2024;54(12):CPG1-CPG32 (exercise recommendation expanded to all contraction types, not eccentric only; progressive loading tailored to the individual).

2. Alfredson H, Pietilä T, Jonsson P, Lorentzon R. Heavy-load eccentric calf muscle training for the treatment of chronic Achilles tendinosis. American Journal of Sports Medicine. 1998;26(3):360-366 (historical eccentric protocol).

3. Beyer R, et al. Heavy slow resistance versus eccentric training as treatment for Achilles tendinopathy: a randomized controlled trial. American Journal of Sports Medicine. 2015;43(7):1704-1711.

4. van der Vlist AC, et al. Which treatment is most effective for patients with Achilles tendinopathy? A living systematic review with network meta-analysis. British Journal of Sports Medicine. 2021 (exercise as first-line; no convincing evidence adjuncts outperform exercise).

5. Reducing tendon compression in insertional Achilles tendinopathy: progressive tendon-loading with limited dorsiflexion (reduced-compression rehabilitation protocol; ClinicalTrials.gov NCT05456620).

6. URAH micellar transdermal glucosamine absorption research (brand-hosted comparative data reported as preliminary; higher blood glucosamine following transdermal vs oral delivery).

General information, not medical advice. A sudden pop or sharp pain at the back of the ankle, an inability to push off the foot, or pain that is severe or not improving should be assessed by a doctor. Author and medical-reviewer byline to be added before publishing.