The pain in the lower left corner of the stomach in the early stages of pregnancy can be caused by a number of reasons: first, it is necessary to observe whether the woman has abdominal pain, bloating and other gastrointestinal dyspepsia. Second, we should pay attention to observe whether the woman is accompanied by vaginal bleeding and other aura of miscarriage. Third, when a woman suffers from left ovarian cyst, left adnexal inflammation or pelvic mass, she may also have pain in the lower left corner of the stomach. In the presence of pain in the lower left corner of the stomach, it is best to do gynecological ultrasound and blood test blood HCG, progesterone levels, if the fetal embryonic development is good, is caused by indigestion, pay attention to appropriate control of the diet, eat more easy to digest, hot food, you can get appropriate relief. The presence of preeclampsia needs to be given birth control treatment, the presence of pelvic masses, pelvic inflammatory disease, can be given medication under the guidance of the doctor, if necessary, need surgery.