Just as your favorite pair of jeans can become worn and threadbare in the knees, your tendons can also develop chronic injury through wear-and-tear.
There are 3 tendons that connect the hamstring muscles (in red) to the sit bone in the pelvis.
Why does chronic tendinopathy occur?
There are 3 tendons in the back of the thigh that connect the hamstring muscles to the ischial tuberosity (the sit bone) in the pelvis. When people engage in sports or activities that subject these tendons to repetitive motions, the elastic collagen proteins in the tendon become injured and start to break down, causing degeneration of the tendon.