The causes of body heat in pregnant women are: first, women in pregnancy appear body heat is only a self-perception, body temperature in the normal range, most of them are due to the increase in progesterone after pregnancy, and due to the high basal metabolism, women will feel hot, you can give appropriate symptomatic treatment, drink more water, eat fresh fruits, vegetables, appropriate activities body heat will be relieved. Secondly, women who measure their body temperature above 37.5℃ may be suffering from cold, and need to go to the hospital for examination and diagnosis in time to avoid affecting the growth and development of the fetus. When women in pregnancy should pay attention to proper rest, eat more nutritious food, appropriate activities and exercise, enhance physical fitness, try to avoid cold, cold, is conducive to the health of pregnant women themselves and the growth and development of the fetus.