Pregnant women have pain like cramps in their belly, which may be physiological or pathological. Pregnant women in the middle and late pregnancy due to the gradual growth of the fetus, causing the uterus to increase, pulling the pelvic floor muscles and ligaments and cause pulling pain, belongs to the normal physiological phenomenon, no special treatment, pay attention to rest, avoid strain, the symptoms will gradually ease. The causes of pathological pain are as follows: 1, some women during pregnancy if they do not pay attention to keep the small abdomen warm, cold, cold or eat too much cold food caused by uterine contraction, small abdominal pain, need to keep the small abdomen warm, while hot compress small abdomen to relieve the symptoms; 2, sometimes due to overwork and other factors, easy to cause uterine contractions, will also appear small abdominal pain symptoms. It is recommended to pay attention to rest and avoid straining, and at the same time, you need to pay attention to keep your mood relaxed and avoid excessive anxiety and depression. 3.