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cauda equine syndrome

Semitendinosus Muscle: Buttock, Thigh, Knee, Calf Pain

The semimembranosus muscle can cause and contribute to pain below the buttock, the back The semitendinosus muscle can cause and contribute to pain below the buttock, the back of the thigh and the back of the knee. There is often an aching pain down the back of the thigh while sleeping.of the thigh and the back of the knee. Pain intensifies when walking.