Hip enlargement during pregnancy is due to pelvic enlargement caused by uterine enlargement, fat accumulation due to weight gain during pregnancy, etc. It can be improved through the use of pelvic immobilization belt, postnatal exercise and diet control. 1. Pelvis enlargement due to uterine enlargement: During pregnancy, with the increase of gestational weeks and the continuous growth and development of the fetus, the uterus will be further enlarged, and the pelvis will be enlarged accordingly, which will lead to the enlargement of the hips during pregnancy, and the pregnant women can use pelvic fixation bands to fix the pelvis after giving birth, which will promote the recovery of the pelvis. 2. Weight gain during pregnancy leads to fat accumulation: during pregnancy, pregnant women’s weight will increase, while the body’s hormones will promote the accumulation of fat to the pregnant woman’s hips, you can after delivery through appropriate exercise to reduce fat, but also through dietary control, such as reducing the intake of fried food, to promote the hips back to their original state. Pregnant women’s hips during pregnancy is a normal physiological phenomenon, if pregnant women because of this phenomenon and emotional depression, affecting the normal life, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor, to take the right attitude to face this physiological phenomenon.