AIDS is a chronic disease, and it used to be called the cancer of the century, the incurable disease. Because there were no antiviral drugs in the past, the ultimate end of AIDS was death. The hazards of AIDS include: 1. It seriously affects one’s own health, although with the advent of antiviral treatment, the disease has been brought under control, but AIDS is a lifelong infection and one must take medication for life to control the virus; 2. It can infect other people, especially sexual partners by sexual contact, so it also threatens the safety of loved ones; 3. AIDS is a major social and public problem, and the world has made AIDS a very important public health issue. AIDS mainly harms the young labor force because HIV-infected people are mainly young adults aged 18-48. These people are the backbone of social productivity, and getting sick or dying will bring great loss to society, so AIDS is very harmful.