Having a novel coronavirus may have multi-system sequelae in the respiratory, cardiovascular, digestive, and neurologic systems. 1. Respiratory sequelae. Respiratory symptoms such as shortness of breath or exertional dyspnea, shortness of breath, cough, sputum, chest tightness, etc. may occur, and lung function may decline, with diffusion function declining mostly, and the lungs may undergo glassy and fibrotic changes. 2. Sequelae of cardiovascular system. Cardiovascular symptoms such as elevated resting heart rate, palpitations and elevated blood pressure occur. It may even lead to arrhythmia and myocardial injury. 3. Sequelae of digestive system. The symptoms include poor appetite, diarrhea, abdominal pain and other digestive symptoms. 4. Sequelae of nervous system. Can have dizziness, headache, ataxia, taste and smell abnormalities, cognitive impairment, anxiety and irritability, depression, sleep disorders and other manifestations. It is not necessary that all new crowns heal with sequelae, mainly related to individual differences in the time of recovery and the severity of organ damage.