Women commonly have pain in the back of the waist and leg pain, which is a manifestation of pelvic congestion. Some women can judge their menstrual period based on this symptom, which is usually more obvious before and after menstruation or during ovulation. If the pelvic congestion is mild, the pain will recover more quickly and no special treatment is needed. Meanwhile, if the above symptoms occur, especially during menstruation, women need to rest in bed and drink a moderate amount of water, which can relieve the symptoms. If you have long-term back pain and leg pain, you need to consider whether you have pelvic inflammatory disease, which will gradually worsen with age. Some women also experience back and leg pain after undergoing a cesarean section or abortion, which is related to pelvic congestion and inflammation. Usually, normal breastfeeding at the end of pregnancy allows the uterus and ovaries to rest fully, i.e., the pelvis is rested, and when menstruation occurs again, the symptoms of low back pain and leg pain will be relieved.