The incision, which can be done at a 90 degree angle from the vulva towards the anus or at an angle from the posterior end of the vulva (medio-lateral episiotomy), is performed under local anesthetic (pudendal anesthesia), and is sutured closed after delivery.
Hamstring hyperextension can occur during exercise and stretching. The hamstrings are a group of muscles found at the back of the thigh. Three muscles are in this group: the biceps femoris, the semitendinosus and the semimembranosus. The function of these muscles is to bend the knee and to extend the hip. It is common for these muscles to become hyperextended and injured.
Hyperextension is the movement or extension of joints, tendons, or muscles beyond the normal limit or range of motion. When this happens, it may cause an injury, especially in athletes. Unlike hypermobility, which refers to being double-jointed, hyperextension is the stretching of a body part beyond what is normal.