Occasional abdominal pain in early pregnancy may be physiological pain, but it may also be caused by disease factors, such as ectopic pregnancy or pre-eclampsia, the specific causes and treatment methods are as follows: a. Physiological factors Mostly early pregnancy reactions in early pregnancy, because the embryo will press the capillaries on the endometrium, so produce mild abdominal pain phenomenon. Usually the symptoms are mild, sometimes the pain is just a flash and will not last for a while or keep feeling a vague pain, which can be gradually relieved or disappear. In addition, physiologic uterine contractions can also occur when a pregnant woman is more active, which can lead to vague pain. Physiological abdominal pain usually does not need treatment, as long as to strengthen the warmth, pay attention to rest can be relieved. Pathological factors 1. Pre-eclampsia: usually manifests as frequent abdominal pain or vaginal bleeding. If the pain in the abdomen is very intense and accompanied by redness, miscarriage may have occurred. In this case, you should go to the hospital for relevant examinations to understand the specific cause of the disease. If you have a preterm miscarriage, you can take medications such as dydrogesterone tablets and progesterone capsules under the guidance of the doctor to protect the fetus. If miscarriage has already occurred, ultrasound is needed to check whether the pregnancy tissue is completely removed to avoid incomplete miscarriage; 2. Ectopic pregnancy: often manifests itself as persistent paroxysms of increased abdominal pain, accompanied by irregular vaginal bleeding and other symptoms. In this case, it is necessary to go to the hospital in time to perform relevant tests to confirm the cause and treat the symptoms. If the bleeding is not serious and the symptoms are mild, medication such as methotrexate can be taken under the guidance of a doctor. If the symptoms are severe and the bleeding is heavy, surgery is needed immediately.