Pneumonia usually recovers in about 7 days after discharge from the hospital, but it may take longer if there are special circumstances. Generally speaking, ordinary bacterial pneumonia, after hospitalization and anti-infection treatment, about 1 week after discharge, can basically return to normal, related fever, cough and sputum and other manifestations can be significantly relieved or recovery, belong to the normal recovery cycle. However, if the infection is of a special type, such as Klebsiella or Pseudomonas aeruginosa, or if the patient’s immunity is poor, or if the patient has a combination of underlying diseases, such as severe cardiopulmonary and cerebrovascular diseases, then the recovery time is longer, and it may take 2 to 4 weeks or even longer. Patients need to observe their own symptoms, if there is a high fever and other signs of deterioration of the disease need to immediately seek medical attention, the specific recovery time is subject to the advice of the doctor.