Patients with pelvic soreness, the following reasons are common: First, pregnancy: pregnant women will be a lot of blood congestion in the pelvis, and the gradual development of the fetus will lead to pelvic blood circulation anomalies, venous reflux will be poor pelvic soreness and swelling, and in severe cases, there will also be obvious swelling of the lower limbs. Second, ankylosing spondylitis: there will also be pelvic sacroiliac joints and other parts of the obvious soreness, discomfort, in the early stage of the symptoms are particularly obvious. Third, congenital abnormalities of pelvic development: acetabular dysplasia, hip dislocation, the patient will have obvious localized soreness and discomfort, and in severe cases, the lower limbs will be unequal in length, and it will be difficult to walk. Therefore, pelvic soreness, early diagnosis, early treatment, in order to make the clinical symptoms can be relieved.