It may be a normal physiological phenomenon, or it may be a symptom of labor, or caused by constipation, which needs to be dealt with accordingly after clarifying the cause. Common causes and treatment 1, normal physiological phenomenon: late pregnancy, the pregnant woman’s uterus is larger, the abdominal cavity of various tissues and organs by the uterus squeeze displacement, rectum in the uterus under pressure, always have to defecate feeling but can not be defecated, belongs to the normal phenomenon. At this time it is recommended that without affecting the development of the fetus, appropriate control of pregnant women’s diet, the size of the uterus within a reasonable range to avoid excessive pressure on the intestines and other tissues and organs, but also for the smooth production, to avoid obstructed labor and the birth of a huge child to prepare; 2, the symptoms of labor: late pregnancy when the expected date of delivery is approaching, pregnant women appear to want to defecate and can not defecate may be the symptoms of labor, pregnant women will feel the lower abdominal cramping feeling obvious And last longer, the pain interval is getting shorter and shorter, the stomach has a hard feeling, suggesting the start of contractions. For pregnant women giving birth for the first time, the general contraction pain interval 5-6 minutes, each time lasts 30-40 seconds, and continue to observe the contraction interval time gradually shortened, then consider labor, at this time you can take the items needed for hospitalization to go to the hospital for related examination; 3, constipation: pregnant women from the beginning of pregnancy by the body’s hormone level, gastrointestinal tract peristalsis slow plus the amount of exercise is less likely to cause constipation. When constipation increases intestinal peristalsis, you may feel stomach pain and cramps, and at the same time have the intention to pass stool but can not be discharged. Eat light, easy-to-digest food, drink more water, exercise in moderation, eat less and more often, avoid overeating, and develop good bowel habits. When a pregnant woman feels like having a bowel movement but cannot pass it, she must not force it to avoid danger and seek professional help if necessary.