Although I treat a fair number of people with Hamstring Tendinosis, in my practice I more frequently treat “pulled” or “torn” hamstrings.  I italicize these two words because most of the time, the muscle belly itself is not pulled or torn.  Probably 99% of the time, these so-called pulled or torn muscles are actually Fascial Adhesions (STRETCHED, PULLED OR TORN MUSCLES) — problems that will not show up on an MRI.  One of the unique characteristics of Hamstring Tendinosis is that it can effect either or both ends of the muscle — at the buttocks or at the knee. By the way, the official name of the Hamstring muscle is the Biceps Femoris, and as the name implies, it has two heads.  This is why you will sometimes seen Tendinopathy of the back of thigh called Biceps Femoris Tendinosis.  The outer portion is simply called The Lateral Head.  The inner hamstring muscle is itself made up of two parts — the semimembranosus and the semitendinosus.

Sometimes I see Hamstring Tendinosis at the upper attachment point of the hamstring muscles (the Ischial Tuberosity — the butt bone that you sit on — see the red dot on the picture on the left below), and sometimes I see it near the back of the knee.  It can occur either place, but is probably a bit more common behind the knee.  It is often mistaken for “WEAVER’S BOTTOM” if it’s in the upper attachment.

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