Slight abdominal pain in early pregnancy may be due to the normal physiological phenomenon caused by the fertilization of the egg, but it may also be due to pathological factors, such as: a priori miscarriage, ectopic pregnancy, pelvic inflammatory disease and so on. 1. Physiological reasons: in the process of fertilized egg implantation, the body’s hormone level will change, and then some women will have a slight pain in the abdomen. This is a normal physiological phenomenon and does not require special treatment. 2. Pathological causes (1) Pre-eclampsia: In the early stages of pregnancy, a slight pain in the abdomen occurs, if the pain symptoms are more serious, accompanied by vaginal bleeding, abdominal drop and other symptoms, there may be pre-eclampsia. (2) Ectopic pregnancy: In the early stage of pregnancy, due to the fertilization of the egg outside the uterine cavity, called ectopic pregnancy, especially in the fallopian tube area, there may be a slight pain in the abdomen. (3) Pelvic inflammatory disease: Some women who suffer from pelvic inflammatory disease themselves may also have symptoms of slight hidden pain in the abdomen when the inflammation is not serious, but at the same time, it will be accompanied by symptoms such as increased vaginal discharge and lumbosacral pain. In addition to the above reasons, indigestion, appendicitis, ovarian cysts, enteritis, etc., may also cause symptoms of hidden pain in the abdomen. Therefore, you can observe the symptoms of mild abdominal pain in early pregnancy, and if the symptoms gradually become heavier or are accompanied by vaginal bleeding, it is recommended to consult a doctor in time to clarify the cause of the disease and treat the cause of the disease.