Since the opening of the national two-child policy, more and more patients are coming to the clinic due to second child infertility. What are the main problems that cause infertility in the second child? First, the first child was born by caesarean section, and some women developed scarred uterus, which caused difficulties in getting pregnant again; second, it was not easy to get pregnant with the first child, and the problems of amenorrhea and irregular menstruation that existed before were not dealt with; third, the uterine wall was not adjusted after the first child was born, and there were problems of thinning of the uterine wall and decrease in the amount of menstruation; and fourth, the birth control ring was placed by some women after the first child, which led to problems of blocked fallopian tubes and pelvic inflammatory disease, and so on. From the perspective of Chinese medicine, deficiency is the main cause of cold limbs, such as deficiency of spleen and kidney, deficiency of yang and blood. From the perspective of Western medicine, it is caused by poor circulation in the peripheral nerves of the extremities, coupled with a lack of exercise and inattention to warmth. This condition is most common in young women. How to keep the limbs warm? 1, eat more ginger and soak your feet in ginger peel. As soon as winter comes every year, you will prepare a lot of ginger, and then pack the skin and meat of ginger separately. Every night before going to bed, will grab a handful of ginger skin into the hot water, and then soak your feet, each 15-30 minutes. 2, feet is our second heart, the body of each organ can be found in the feet of the corresponding points, before going to bed soaking feet can not only improve peripheral nerve circulation, but also help the body healthy. Ginger is hot, has a good effect on cold, soak your feet when sprinkled with a little ginger, can quickly drive away the cold, but also to prevent the flu. 3, foot bath is also special attention, the water must be 1/3 of the calf, must be hot, must use the barrel. She said that the water is enough, hot enough to be effective, of course, can not be too hot, otherwise it will burn the skin. Choose a wooden barrel to soak your feet, one is that wooden barrels are easy to keep warm, and the second is that wooden barrels are original and close to nature. Plastic tubs do not work, too hot water poured in a plastic tub is easy to start a chemical reaction, unhealthy. 4, in addition, cooking is very like to use ginger, morning and evening like to use cold water to wash your face. The blood circulation of the face is relatively rich, and is always exposed to the outside parts, wash your face with cold water, you can improve the cold resistance of the face, and can be beauty, treatment of rhinitis.