Soreness on both sides of the buttock depression of pregnant women may be due to hormone level changes, fatigue, calcium deficiency and other reasons. 1. Hormone level changes: due to the hormone level changes in the patient’s body during pregnancy, which can lead to pelvic congestion and compression of the sciatic nerve and produce soreness. 2. Fatigue: It may be due to the fact that women in the early stage of pregnancy are easily fatigued and sit for a long time, which leads to the phenomenon of hip pain. 3. Calcium deficiency: in the late stage of pregnancy, the body’s demand for calcium is significantly increased, many pregnant women in the late stage of pregnancy will appear calcium deficiency phenomenon, which is manifested in the body localized soreness. Therefore, if the patient appears to be pregnant women on both sides of the buttocks discomfort symptoms, if after sufficient rest and calcium supplementation, still can not be relieved, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor, improve the relevant examination, symptomatic treatment.