There is no conclusive evidence on the sequelae of the new coronavirus and further research is needed. Sequelae refer to the failure of some patients suffering from infectious diseases to restore the function of certain organs to normal for a long time after the recovery period. Some patients may experience a prolonged period of loss of taste, smell, memory loss, cough, etc. Some scholars refer to these as “long neocollins,” meaning that individuals with probable or confirmed neocollin infections may still have symptoms 3 months after infection, with symptoms persisting for at least 2 months, and with no other apparent triggers. The term “new crown growth” is used to describe individuals with probable or confirmed new crown infection who have symptoms 3 months after infection, symptoms that persist for at least 2 months, and no other apparent cause. At this time, it is not possible to confirm that the symptoms of “crown growth” are sequelae of new crowns, and further observation is needed. If there are symptoms such as fever, runny nose, cough, etc. in daily life, it is recommended to consult a doctor in time.