Fear of heat in pregnant women is a common reaction to pregnancy, caused by an increase in the basal metabolic rate of pregnant women after pregnancy, accelerated metabolism and increased heat production. Pregnant women will experience an increase in progesterone, resulting in an increase in body temperature, and with the increase in months, it will cause the body’s metabolism to increase, blood flow increases, causing the pregnant woman’s body temperature to rise, so pregnant women will be afraid of heat. When pregnant women are afraid of heat, they need to pay attention to wearing loose, breathable and sweat-absorbent cotton clothes, which will be more comfortable. And also need to pay attention to maintain a comfortable indoor temperature and humidity, indoor doors and windows should be opened, to maintain ventilation, can promote the dissemination of heat. It is recommended that pregnant women who are afraid of heat need to drink more warm water, and timely hydration to avoid dehydration.