Pneumocystis carinii pneumonia has a cure rate of 50-90%, or even more than 95%, if it is treated promptly. However, if the disease is not properly treated, the mortality rate can reach 100%. Pneumocystis carinii pneumonia is the most common disease caused by Pneumocystis carinii infection, which occurs mostly in immunocompromised patients, especially in AIDS patients. Pneumocystis carinii pneumonia is the most common disease caused by Pneumocystis carinii infection, which occurs mostly in immunocompromised patients, especially in patients with AIDS. Early antifungal treatment can effectively reduce the mortality rate of patients. In patients with AIDS, the mortality rate can be reduced to less than 15% with aggressive anti-Pneumocystis carinii treatment; however, the mortality rate associated with severe Pneumocystis carinii infections that result in respiratory failure can still be as high as 60%. Nowadays, the cure rate of Pneumocystis carinii pneumonia is still very high, patients should actively cooperate with the doctor’s treatment, according to the doctor’s advice to take medication regularly.