What muscles could cause achilles & back of ankle pain?

Muscles that may contribute to achilles & back of ankle pain include gastrocnemius, soleus, plantaris, flexor hallucis longus, tibialis posterior. Trigger points, strains, or weakness in these muscles can refer pain to this area.

Lower Leg

Achilles & Back of Ankle

Q: What causes pain in the achilles & back of ankle?

Common causes of achilles & back of ankle pain include achilles tendinopathy from overuse or sudden training increases, achilles tendon rupture from explosive movements, insertional achilles tendinitis at the heel bone, retrocalcaneal bursitis behind the achilles, calf tightness overloading the achilles tendon. The specific cause depends on the nature of the pain, how it started, and which movements aggravate it.

Pain at the Achilles tendon and back of the ankle involves the gastrocnemius, soleus, and the Achilles tendon itself. Achilles tendinopathy is one of the most common overuse injuries in runners and is caused by repetitive loading beyond the tendon's capacity.

Medical Disclaimer

This information is for educational purposes only and does not constitute medical advice. Consult a qualified healthcare provider for proper diagnosis and treatment of any pain or medical condition.

Common Causes

Achilles tendinopathy from overuse or sudden training increases

Achilles tendon rupture from explosive movements

Insertional Achilles tendinitis at the heel bone

Retrocalcaneal bursitis behind the Achilles

Calf tightness overloading the Achilles tendon

Muscles in This Area

Lower Leg

gastrocnemius

The gastrocnemius forms the visible calf bulge, crossing knee and ankle for explosive plantarflexion. Key for sprinting, jumping, and calf raises. Two heads make it powerful for athletic propulsion.

Gastrocnemius strainAchilles tendinopathyTear (tennis leg)

Lower Leg

soleus

Broad flat muscle deep to gastrocnemius in calf, plantarflexes ankle for standing/walking. Powers propulsion in running/squats; endurance king.

Achilles tendinopathySoleus strainPosterior tibial tendinopathy

Lower Leg

plantaris

The plantaris is a thin, vestigial calf muscle aiding knee flexion and plantarflexion, like a minor gas pedal muscle. Often ruptured without issue due to redundancy. Useful for explosive calf power in jumping.

Plantaris rupturePlantaris tendinopathy

Lower Leg

flexor hallucis longus

Running deep in the calf's posterior compartment, the flexor hallucis longus flexes the big toe and plantarflexes the ankle. It's essential for powerful push-off in sprinting, ballet, and hill running. Athletes rely on it for toe grip on uneven terrain.

Flexor hallucis longus tendinopathyHallux rigidus

Lower Leg

tibialis posterior

Hidden deep in the calf behind the tibia, the tibialis posterior supports your arch and stabilizes the ankle. It inverts the foot and assists plantarflexion, vital for push-off in running and preventing flat feet. Weakness leads to overpronation and foot pain during activity.

Posterior tibial tendon dysfunctionTibialis posterior tendinopathyAcquired flatfoot deformity

Stretches That May Help

Wall calf stretch straight knee

Downward dog

Foam roll calf

Soleus wall stretch

Seated calf stretch

Calf wall stretch

Plantaris-specific toe point

Lunge big toe stretch

Calf stretch with big toe extended

Kneeling big toe flexor stretch

Seated foot inversion stretch

Wall ankle inversion stretch

Foam roller calf release

Recommended Exercises

When to See a Doctor

Seek immediate medical attention if you felt a sudden pop or snap in the back of the ankle, cannot push off or walk on tiptoe, or have significant swelling and bruising around the Achilles.