Sore legs and belly small amount of vaginal bleeding is considered to be related to hormone level changes, pregnancy-related diseases, gynecological organic diseases, etc., and the treatment needs to be based on the causes of their choice of antibiotics, estrogen and progesterone preparations and other treatments. 1. Changes in hormone levels: For women who are ovulating, due to the decline in estrogen levels in the body, they cannot support the growth of the lining, so some women will experience a small amount of vaginal bleeding, usually 2-3 days of bleeding can be stopped, and due to the changes in hormone levels in the body, some women will experience soreness in their legs and stomach, abdominal pain and other discomforts, and this time can be supplemented with estrogen preparations prior to ovulation. 2. Pregnancy-related diseases: For women who are already pregnant, if the patient has a combination of sore legs and stomach, abdominal pain, small amount of vaginal bleeding and other discomforts, we should be vigilant about the occurrence of pre-eclampsia and ectopic pregnancy. In this case, according to the cause of the disease, we need to supplement the progesterone preparation or use mifepristone, methotrexate and other embryonic drugs, and if necessary, need surgical treatment. 3. Organic gynecological diseases: For patients with organic diseases such as uterine fibroids, adenomyosis, cervical cancer, endometrial cancer, etc., there will be a small amount of bleeding from sore legs and belly, accompanied by lumbar acidity, abdominal pain and other discomforts, at this time, it is necessary to comply with the doctor’s instructions to actively treat the primary pathology through surgery and other means. For the patients with sore legs and small amount of vaginal bleeding, it is recommended to go to the gynecology department of regular hospitals, improve ultrasound and other relevant examinations to clarify the cause of the disease and then actively treat it under the guidance of doctors.