Ultraviolet disinfection lamps have an effect on pregnant women, if the exposure time is not long, the impact may not be significant, if a long period of exposure, may lead to fetal development deformity or fetal arrest. UV disinfection lamp is a commonly used physical disinfection, will cause some damage to human skin, eyes, too much radiation may cause chronic cataract, acute keratitis and other diseases, resulting in skin aging, wrinkles, chloasma and so on. Ultraviolet disinfection lamp if the irradiation time is not long, only occasionally unintentionally irradiated, the radiation produced by the human body does not have much harm to the pregnant woman and the fetus is not much, pregnant women do not need to worry too much. If a pregnant woman is irradiated by a UV lamp for a long time, it will affect her health, and in the worst case, it may lead to malformation of the fetus or fetal arrest. Ultraviolet disinfection lamps can penetrate the body of pregnant women to promote the accelerated decomposition of organic matter in the body and the aging of inorganic materials, which will bring greater harm to the growth and development of the fetus. Therefore, pregnant women should not be exposed to ultraviolet light for a long time, and it is recommended that they do their maternity checkups on time and consult a doctor in time if any abnormalities are found.