If you have a vague stomach pain at 19 weeks of pregnancy, you should go to the obstetrics and gynecology department of the hospital in time to find out the cause and take appropriate treatment according to the cause. There are many reasons for pregnant women’s stomach pain, including physiological phenomena and pathological phenomena such as gynecological inflammation and pre-eclampsia, in addition to bad habits may also lead to pregnant women’s stomach pain. First, physiological phenomenon: 19 weeks pregnant belly vague pain, may be due to the growth of the fetus, pregnant women’s uterus also gradually increased, in the process of uterine enlargement, the ligaments around the uterus will be stretched, causing tugging pain. At the same time, there may be pseudo contractions in the 19th week of pregnancy, which is also the reason for the vague pain, usually belongs to the normal physiological phenomenon, no special treatment is needed. It is suggested that pregnant women should pay attention to rest and avoid overexertion. At the same time, they should pay attention to enhance nutrition, eat more food rich in high quality protein, as well as fresh fruits and vegetables, and can take appropriate calcium supplements to promote the growth and development of the fetus. Second, the pathological phenomenon: 1, gynecological inflammation: pregnant women in pregnancy complications of gynecological inflammation, may appear vague pain in the stomach, often accompanied by lower abdominal swelling, back pain and other symptoms. It is recommended that pregnant women go to the gynecology department of the hospital as soon as possible to identify the cause of the disease and treat it according to the examination results. 2. Pre-eclampsia miscarriage: the vague pain in the stomach of pregnant women at 19 weeks may also be a pre-eclampsia miscarriage, the abdominal pain of pregnant women will increase with time and is often accompanied by the symptoms of vaginal bleeding. Pregnant women should immediately go to the hospital obstetrics department for fetal preservation treatment to avoid adverse pregnancy outcomes. Third, bad habits: if pregnant women do not pay attention to keep warm or eat improperly during pregnancy, they may also have hidden abdominal pain during pregnancy. It is suggested that pregnant women should eat less cold food and pay attention to keeping the abdomen warm. If the abdominal pain is accompanied by diarrhea, lactobacillus tablets can be used under medical advice to regulate the intestinal flora so as to relieve the discomfort.