Infrared radiation has a certain degree of radiation to pregnant women, but it is thermal radiation, rather than the ionizing radiation of X-rays and CT examinations. Infrared radiation can only penetrate about 2mm of the skin surface and will not penetrate the uterus into the fetus. Short-term exposure will not adversely affect the fetus, but prolonged exposure may produce a series of adverse effects: 1. Infrared light can penetrate the human skin into the gastrointestinal tract of pregnant women, long-term exposure will damage the normal digestive function of the gastrointestinal tract and secretion function, may lead to indigestion, nausea, anorexia, etc.; 3, affect vision: strong infrared light can damage the retina, daily attention should be paid to avoid direct exposure to infrared eyes to avoid damage to vision. Luminous heat objects in life, will produce infrared, such as bath bombs, physical therapy devices, etc., pregnant women should pay attention to safety when using.