Patients with mild infection with novel coronavirus recover without sequelae. Novel coronavirus is a new virus, and most pneumonia caused by infection, like other viral pneumonia, does not have sequelae after recovery. However, in severely ill patients, there may be residual lung damage such as pulmonary fibrosis for a period of time. However, clinical experience has shown that the lungs are more capable of repair and most pulmonary fibrosis is repairable. However, in very severe patients, there will be longer-term pulmonary fibrosis, and follow-up at a later stage should be strengthened.