Mid-pregnancy is the period from the 13th to the end of the 27th week (4th to 6th month of pregnancy). The risk factors that may cause miscarriage are reduced in the middle of pregnancy, which is the most stable period and also a critical period for the growth and development of the fetus, so health care in the middle of pregnancy should not be neglected. In order to maintain the balance of the body systems of pregnant women, so that the healthy growth of the fetus, pregnant women in the middle of pregnancy should pay attention to: 1, increase nutrition. Mid-pregnancy due to the needs of fetal development, the diet should be nutritious and easy to digest. To ensure the quality of food, so that the nutrition is balanced. Eat more protein foods, vegetables, fruits, etc. The diet should be broad and not partial to ensure the intake of various nutritional elements. Diet should be light, and less salt and alkaline food should be eaten during pregnancy to prevent edema and excessive abdominal distension. Avoid eating cold, spicy and stimulating foods, such as cold drinks, dried ginger, onion, garlic, chili, etc., to prevent the cold from coagulating the uterus and affecting the development of the fetus or disturbing the sea of blood, leading to miscarriage. 2, increase calcium. Calcium is the basic substance for the bones and teeth of the mother and fetus. When the pregnant woman is 8 weeks pregnant, the fetal bones and teeth begin to develop, at this time the pregnant woman supplemented with enough calcium, the normal development of the fetus and the pregnant woman herself are of great benefit. Once a pregnant woman is deficient in calcium, she will have cramps, sleeplessness, frequent sweating, easy to be frightened and other phenomena, and in severe cases, it will lead to serious consequences such as cramps. Pregnant women lack of calcium, the children born will also lead to abnormal bone and teeth development, leading to rickets and hand and foot tics. 3. Change and wash regularly. Underwear to choose ventilation, good moisture absorption of cotton fabrics, change daily. 4, pay attention to weight changes. The average weight gain of pregnant women is 10 to 12.5 kg. Obesity of the mother is likely to induce diabetes, gestosis, etc., causing abnormal fetal development. Weekly weight gain of no more than 500 grams. 5.Prevent swelling. During this period, some pregnant women will have swollen feet or calves, standing, squatting for too long or belt tied too tightly, swelling will increase. Usually swelling is accompanied by high blood pressure and urine protein, which is a normal phenomenon after pregnancy. If the swelling gradually worsens, go to the hospital for examination. 6, pay attention to prevent constipation. During pregnancy, intestinal peristalsis and intestinal tone are weakened, and the amount of exercise is reduced, so constipation is easy to occur. Due to the pressure of the uterus and the fetal dew, you will also feel the difficulty of defecation, you should develop the habit of defecation, eat more vegetables and fruits containing more fiber, if necessary, oral laxatives, but prohibit dramatic laxatives, so as not to cause abortion and preterm delivery. 7, do not ignore the urinary tract infection. Urinary tract infections are caused by endocrine changes during pregnancy and functional and mechanical obstruction of the ureter caused by an enlarged uterus. If left untreated, it may lead to serious consequences such as miscarriage, premature birth, fetal dysplasia, and even malformation. Since most pregnant patients are asymptomatic or have mild symptoms, special attention should be paid to them. 8.Keep a happy mood. You should listen to more light and pleasant music during pregnancy. A happy mood can promote fetal growth and development and reduce fetal movement. Do not listen to stimulating rock music, should cultivate the hobby of raising flowers, goldfish to distract bad moods, cultivate sentiment. 9, to ensure adequate sleep, appropriate activities. Activity can promote the blood circulation of pregnant women and fetuses, which is conducive to the development of the fetus and the smooth delivery of pregnant women. But avoid excessive fatigue and heavy physical labor, pay proper attention to rest. 10, strengthen fetal education. Consciously and deliberately implement fetal education and pursue the quality of fetal education. In the process of fetal education, the husband should be prepared to care for his wife, so that she can experience the warmth of the family, to maintain a happy mood, full of energy. In addition, the husband should actively support his wife’s efforts for fetal education, actively participate in the process of fetal education, so that the fetus familiar with the father’s low and strong voice, so as to create a sense of trust.