After pregnancy, due to the accelerated rate of body metabolism and increased heat production, most pregnant women will show fear of heat, but there are differences in personal constitution, some pregnant women will be especially afraid of cold after pregnancy, the causes of this symptom may be: 1, weak: pregnant women with too thin body type, due to too weak, lack of subcutaneous fat in the body, lack of heat production, resistance to cold; 2, cold : The decline in body resistance leads to external bacterial and viral attacks and cold symptoms. At this time, the body temperature fluctuates and tends to rise, the body’s immune system is active, skeletal muscle spasms occur, chills and fear of cold; 3, combined with hypothyroidism during pregnancy: hypothyroidism is a relatively common complication during pregnancy, the body’s thyroxine level is insufficient, resulting in slow metabolism and reduced heat production, thus causing the symptoms of fear of cold. If it is not corrected for a long time, it will affect the normal development of the fetus; 4. Combined with more serious iron deficiency anemia during pregnancy: pregnant women with iron deficiency anemia will also have more obvious symptoms of fear of cold, while pregnant women will have dizziness, weakness, palpitations, chest tightness and other symptoms. After pregnancy, pay attention to strengthen nutrition, in the early pregnancy is very important for the growth and development of the embryo, the diet should be supplemented with protein, eat more food containing vitamins and eat more nuts.