The root of the thigh refers to the groin area, which is the part of the body where a person’s lower limbs are connected to the torso. The groin area has blood vessels and nerves passing through it, as well as a large number of lymph nodes. If there are enlarged lymph nodes in the groin area, it is necessary to consider whether there is inflammation of organs or organs in the lower limbs or pelvis, resulting in enlarged lymph nodes. The groin area is also the place for femoral vein or femoral artery puncture, in the groin area can be pressed, touch, obviously get the femoral artery pulsation point, based on this, to help carry out the femoral artery and femoral vein localization, the groin area is also very important for the physical examination of the examination area!