When women have vague pain in the abdomen in early pregnancy, the following possibilities are considered: firstly, the patient has pre-eclampsia or ectopic pregnancy, when the patient has pre-eclampsia or ectopic pregnancy there will be vague pain in the abdomen accompanied by a small amount of irregular vaginal bleeding, through dynamic observation of blood progesterone, HCG and ultrasound changes, the diagnosis can be clear. Second, consider suffering from chronic pelvic inflammatory disease, after pregnancy the whole uterus enlarges bleeding will aggravate the inflammatory reaction, easy to appear small abdominal hard pain. Third, the body is weak, insufficient qi and blood, the uterus does not have enough qi and blood to moisten after pregnancy, so pain occurs, from the perspective of Chinese medicine does not glory is pain. Fourth, when the patient has adenomyosis or uterine fibroid deformation, abdominal pain can occur during pregnancy. Fifth, when the patient has urinary tract infection or intestinal inflammatory disease combined in the early stage of pregnancy, small abdominal hidden pain can appear.