Achilles tendonitis and Achilles pain are common reasons patients come to see me in Colchester, but I rarely think the most useful question is simply “what is wrong with the tendon?”
“Why this Achilles? Why this side? And why now?”
I am Mr Tim Williams, Consultant Orthopaedic Foot & Ankle Surgeon in Colchester. My approach is to understand not only where the Achilles hurts, but what has changed in the weeks or months leading up to it — activity, strength, footwear, ankle stability, gait or the wider health of the tendon.
Achilles pain Achilles tendonitis Achilles tendinopathy Heel pain Colchester · Essex · Suffolk · East Anglia
What is the Achilles tendon?
The Achilles is the large tendon at the back of the ankle connecting the calf muscles to the heel bone. It experiences substantial load every time you walk, run, climb stairs or rise onto tiptoe.
It is tempting to describe its job simply as pulling the foot down. In reality, during walking and running it works as part of a much larger mechanical system involving the calf, heel bone, ankle, subtalar joint, plantar fascia, ligaments, foot and the ground beneath you.
This matters because a painful Achilles may be the site at which overload has appeared rather than the only structure responsible for why it developed.
The bow and arrow: how I explain the Achilles
I often explain the mechanics to patients using a bow and arrow. It is deliberately simple, but it helps explain why the Achilles cannot always be considered in isolation.
As your body passes over the foot, tension, geometry and ground constraint change continuously. The calf–Achilles system can store and return energy while the foot progressively changes stiffness and prepares for propulsion.
A useful principle is that tension alone does not determine movement. Tension acting through geometry under constraint determines movement.
The analogy does not mean the body is literally a rigid bow. It is a way of understanding why a tendon can be affected by changes elsewhere in the foot and ankle.
Achilles tendonitis: why this side, and why now?
In most patients I think of Achilles tendinopathy as a repetitive microtrauma and failed-adaptation problem: for some reason the loads reaching the tendon have begun to exceed its ability to recover and adapt.
A tendon is living tissue. Loading is normally good for it. The problem comes when the amount, rate or pattern of loading repeatedly exceeds the tendon’s current capacity.
Sometimes the change is obvious: you started running further, added hills, changed shoes, returned to sport after a break or dramatically increased your walking. Sometimes it is much subtler.
Load changed
More running, hills, jumping, padel, gym work, walking or a sudden return after rest.
Capacity changed
Loss of calf strength, deconditioning, ageing tendon or reduced recovery may make previously tolerable activity excessive.
Mechanics changed
Previous ankle injury, altered gait, footwear, foot rollover or ankle control may change the tendon’s loading environment.
That is why I do not stop at the scan. If an Achilles tendon has coped for decades, I want to understand what changed before assuming that the tendon itself is the whole explanation.
Could ankle instability contribute to Achilles pain?
This is a particular clinical interest of mine. The evidence does not allow us to say that ankle instability directly causes most Achilles tendinopathy. However, altered gait and foot rollover are recognised potential contributors to Achilles loading, and mechanically it is sensible to examine the stability of the structure beneath a heavily loaded tendon.
Think again about the bow. If the base of the bow repeatedly changes position while it is loaded, the line and distribution of tension through the system also change.
For that reason I routinely assess previous ankle sprains, ligament stability, heel position, balance and walking pattern in patients with persistent Achilles pain.
In selected patients an ankle brace can also be a useful clinical test. If stabilising the ankle substantially changes Achilles symptoms, that tells us something important about the wider mechanical environment in which the tendon is working.
Where does Achilles tendinopathy hurt?
There are two common patterns. Mid-portion Achilles tendinopathy usually causes pain and thickening a few centimetres above the heel and may be particularly stiff first thing in the morning or when starting activity. Insertional Achilles tendinopathy affects the point where the tendon attaches to the heel bone and may be associated with calcification, a bony prominence or irritation from footwear.
What if both Achilles tendons hurt?
When Achilles pain is very symmetrical or bilateral, I broaden the search. Two tendons can certainly be overloaded together, particularly after a large change in activity, but bilateral symptoms lower my threshold for considering factors affecting the body as a whole.
- General health and metabolic factors
- Diabetes and cholesterol
- Inflammatory disease
- Other tendon symptoms
- Medication history
- Fluoroquinolone antibiotics
- Major training or activity change
- Symptoms elsewhere in the body
This does not mean that bilateral Achilles pain automatically indicates systemic disease. It simply means that I am less willing to assume two similar problems developed independently for purely local reasons.
Do I need an ultrasound or MRI scan?
Not always. Achilles tendinopathy can often be diagnosed from your history and examination. Imaging is useful when the diagnosis is uncertain, symptoms are atypical, a partial tear is suspected or progress is not following the expected course.
“I treat the patient rather than the scan.”
Scans can show tendon thickening or structural change, but those findings need to be interpreted alongside your symptoms, examination and the mechanical context.
Achilles tendonitis treatment in Colchester
Most people with Achilles tendinopathy do not need surgery. Treatment centres on reducing the load that is currently irritating the tendon while progressively rebuilding the calf and tendon’s ability to tolerate load.
1. Settle the overload
Modify the activities currently provoking the tendon without unnecessarily stopping everything.
2. Rebuild capacity
Progressive calf and Achilles loading, strength work and rehabilitation are central to recovery.
3. Address contributors
Footwear, ankle stability, range of movement, gait, foot mechanics and training progression are considered where relevant.
Treatment may include
- Load and activity modification
- Progressive calf strengthening
- Heel raises and resistance work
- Physiotherapy
- Footwear adjustment
- Temporary heel lifts where appropriate
- Insoles in selected patients
- Ankle brace if instability is relevant
- Shockwave therapy for persistent symptoms
- Careful review of stretching
- Imaging where indicated
- Surgical review only when appropriate
Complete rest is usually not the goal. Tendons need load — but they need the right amount of load at the right stage.
Should I stretch my Achilles?
Sometimes — but not automatically. If ankle movement is genuinely restricted, stretching may be helpful. However, repeatedly forcing an irritable insertional Achilles into dorsiflexion can increase compression at the heel and may aggravate symptoms.
First understand the problem. Then choose the exercise.
How long does Achilles tendinopathy take to recover?
Tendons are slow. A problem that has developed over months is unlikely to disappear in a fortnight. Improvement is usually judged over months, with inevitable fluctuations along the way.
“Build, don’t burst.”
A better week should be used to build capacity — not immediately test the tendon to destruction.
What will I assess at an Achilles consultation?
A specialist Achilles assessment should look beyond the sore point. I will usually assess:
- Exact site and pattern of pain
- Tendon thickening and tenderness
- Calf strength and muscle bulk
- Ankle range of movement
- Ankle ligament stability
- Heel and hindfoot alignment
- Foot shape and subtalar movement
- Balance and proprioception
- Walking pattern
- Footwear and training history
- Previous ankle injuries
- What changed before symptoms began
Throughout the consultation I keep returning to the same three questions:
Why this Achilles?
Why this side?
Why now?
Achilles pain specialist in Colchester, Essex
Mr Tim Williams is a Consultant Orthopaedic Foot & Ankle Surgeon based in Colchester, treating private patients from Essex, Suffolk and across East Anglia.
If you have persistent Achilles tendon pain, insertional Achilles tendinopathy, a thickened Achilles, pain at the back of the heel or Achilles symptoms associated with recurrent ankle instability, a consultation can help establish the diagnosis and a sensible treatment plan.
Sensible. Safe. Straightforward.
