There is no such thing as “diabetes and AIDS which is serious”, both diabetes and AIDS need to actively cooperate with the doctor’s treatment, can help prolong the survival period. Diabetes mellitus is a group of metabolic diseases mainly characterized by chronic elevation of blood glucose level, with symptoms such as excessive drinking, excessive eating, excessive urination, weight loss, etc. It needs to be treated with glucose-lowering drugs such as acarbose, metformin, etc. or insulin injection under the guidance of a doctor; if it is not treated positively, it will lead to cardiovascular and renal diseases and other serious complications, which will shorten the survival period and even threaten the life. AIDS is an immunodeficiency disease caused by HIV infection, which can be treated with antiviral drugs such as tenofovir, and when accompanied by infection, it needs to be treated for the infected disease, such as tuberculosis, which needs to be treated with isoniazid; this disease is prone to induce various kinds of infections that will eventually lead to the patient’s death, and those who actively cooperate with the treatment will have a longer survival period. Patients diagnosed with diabetes or AIDS should actively cooperate with doctors for treatment.