The most common cause of stomach pain in the 7th month of pregnancy is the increase of the fetus and the uterus, which presses the gastrointestinal tract and the bladder forward and upward, causing the dysfunction of the gastrointestinal tract and the bladder, resulting in discomfort and pain, which is a kind of physiological abdominal pain, so there is no need to worry excessively and pay attention to the changes of the condition. If the abdominal pain is serious and the duration of the disease is long, this needs to be noticed. If the pregnant woman is accompanied by vaginal bleeding, the possibility of pre-miscarriage cannot be ruled out. If the pregnant woman eats spicy and stimulating food, cold food causes gastrointestinal disorders, leading to intestinal spasm and enteritis, which requires symptomatic treatment. If the pain in the right lower abdomen is more serious, accompanied by fever, nausea and vomiting, the possibility of acute appendicitis cannot be ruled out, and timely medical consultation and treatment must be sought to avoid unnecessary complications.