Pregnant women with severe constipation should be given timely correction and treatment, otherwise it will affect the development of the fetus and the health of the pregnant woman in the long run. If the constipation is serious, you can use drugs to laxative under the guidance of a physician, but you must not take or use laxatives on your own, it is likely to cause miscarriage or premature birth. In order to reduce the symptoms of constipation, usually in the diet, should often eat some coarse grains, mixed grains, more food containing more fiber, such as: staple food to potatoes, barley, corn, yams and other coarse grains, vegetables such as celery, coronary, spinach, water chestnuts, leeks, mushrooms, rape, etc.; pregnant women should also choose foods containing vitamins and water, such as silver fungus, egg yolk, bean sprouts, homemade first fruit and vegetable juice, fresh milk, etc. The fruits are mainly water-rich kinds such as pears. Eat less spicy, stimulating, cold food. Pay attention to daily adhere to appropriate physical activities, such as walking, but also can do some light housework, to develop a good habit of regular daily bowel movements, even if you can not go to the toilet on time, and gradually form a conditioned reflex. Therefore, pregnant women with severe constipation must pay attention to, and actively give treatment, only to keep the stool smooth, in order to avoid constipation to the fetus brought about by the damage.