During pregnancy, women will have a high incidence of a series of common diseases, such as diabetes, constipation, anemia and so on, because of changes in hormone levels in the body and changes in body metabolism. During pregnancy, nutrition should be enhanced, but not in excess, otherwise it will easily cause obesity, cause elevated blood sugar and lead to the risk of diabetes, control the diet, eat less sweets, and eat less and more meals. During pregnancy, the enlarged uterus leads to indigestion and constipation, so you should exercise properly to promote gastrointestinal motility and eat more fresh vegetables and fruits. In addition, the demand for iron increases after pregnancy, so if you do not take iron supplements in a hurry, it is easy to cause iron deficiency anemia, so you can take iron supplements under the guidance of your doctor and eat animal liver and meat in your diet. If you want to effectively prevent the common diseases that occur during pregnancy, you must pay attention to a healthy diet, participate in outdoor activities, keep your mood relaxed, strengthen your body resistance, and have regular maternity checkups.