When women are pregnant, it is quite difficult, not only because they are prone to illness, but also because they may have many adverse symptoms, such as nausea and vomiting, lower limb edema, etc. Some women may feel pain at the base of their thighs during late pregnancy, which can have an impact on their daily lives. So, what is the reason for thigh root pain in late pregnancy?
Late pregnancy thigh root pain may be caused by mechanical compression of the sciatic nerve. The sciatic nerve is the largest peripheral nerve in the human body, located deep in the gluteus maximus muscle, and can control the movement and sensation of the posterior thigh, lower leg, and foot. The symptoms of thigh root pain in pregnant women usually gradually disappear after childbirth.
Excessive separation of the pubic symphysis in pregnant women is also a common cause of thigh root pain in late pregnancy. Under normal circumstances, there is a distance of 45mm between the two pubic bones of a person. However, during pregnancy, the body secretes relaxin and progesterone, which can cause ligaments to relax. This increases the distance between the pubic bones by more than 20mm, thereby increasing pelvic elasticity and providing more room for fetal growth. However, this can cause pain symptoms at the base of the thighs.
If the round ligament of a pregnant woman is stretched, it can also cause pain symptoms at the base of the thigh. The position of the circular ligament is located at the root of the thigh. In the late stage of pregnancy, the uterus will expand greatly, which will cause the circular ligament to stretch too much, leading to pain in the thigh root of pregnant women.
