The vague pain in the lower abdomen in the 9th month of pregnancy may be a physiological manifestation, or it may belong to the signs of labor, in addition to the problems caused by pregnancy, it may also be a disease of other organs in the abdomen. Common causes 1, non-disease factors 1, physiological manifestations: If the lower abdominal pain is relatively mild, and there is no hardness or tightness of the stomach when the pain, this is a physiological manifestation, and does not require special treatment. Because the fetus in the process of growth will lead to the uterus also enlarged, the uterus during the enlargement will show a slight rupture of muscle fibers, there will be a vague feeling of pain. The pain can be relieved after getting sufficient rest. 2. signs of labor: If the abdominal pain is more regular, appearing once in 5-6 minutes, while the duration of each pain is more than 30 seconds, and the stomach feels hard and tight, it indicates the possibility of labor. Regardless of whether there is redness or water breakage at this time, you need to rush to the obstetrics department of the hospital for examination and prepare for delivery; 3. abdominal organ lesions: such as appendicitis can appear intermittent hidden pain or distension in the right lower abdomen, sometimes heavy and sometimes light, the location is relatively fixed. 9 months pregnant women close to the state of labor, need to be evaluated by a doctor to decide the treatment plan, common treatment includes drug therapy and surgery. Precautions 1, pregnant women in late pregnancy should not consume too much sugar, do not eat too many staple foods, such as rice and flour, you can eat more fish, chicken and other protein-rich foods; 2, pregnant women should avoid strenuous exercise, sex, but do not just wait, you can maintain a non-strenuous exercise routine.