Small abdominal pain in early pregnancy can be seen in the following cases: first, women with Qi and blood deficiency can have small abdominal pain, from the perspective of traditional Chinese medicine, if it is not honored, it is painful, when the patient is weak and has Qi and blood deficiency, the patient’s Qi and blood are not enough to nourish the fetus after pregnancy, which will lead to abdominal pain and discomfort, in this case the patient’s small abdominal pain is relatively mild, the blood progesterone and HCG values are relatively normal, the ultrasound is also within Second, the patient has factors affecting the development of embryo, resulting in abdominal pain due to pre-eclampsia, in this case, the level of progesterone and HCG are low, you can choose fetus preservation drugs according to the situation; Third, after the embryo stops developing, causing uterine contraction and abdominal pain, the patient has abdominal pain accompanied by Fourth, abdominal pain occurs when the patient has ectopic pregnancy, the abdominal pain is mostly on one side, and if the ectopic pregnancy ruptures, the pain in the whole abdomen can be more intense; Fifth, when the patient has intestinal or urinary system diseases combined with pregnancy, abdominal pain can occur, but it will be accompanied by clinical manifestations of intestinal and urinary system diseases.