Infrared radiation, while playing its role, also has certain harm to the human body, which can easily lead to the emergence of the following diseases: First, infrared radiation is a kind of thermal radiation, which can cause high-temperature damage to the human body, if the particularly strong infrared radiation can burn the patient’s skin, the early is a burning sensation, and even cause skin edema, crust and other scalding performance. Secondly, infrared radiation with a wavelength of 7,500-13,000 Å can cause damage to the retina of the fundus; infrared radiation with a wavelength of 10,000 Å can directly cause burns to the retina of the fundus; infrared radiation with a wavelength of 19,000 Å or more can cause burns to the cornea. Long-term exposure to infrared radiation can also cause cataracts and other serious diseases. Of course, infrared rays may have other damages, so I will not list them here.