How long a person can live with Still’s disease cannot be given an exact time, but should vary greatly according to the patient’s condition, individual constitution and many other factors, so how long a person with Still’s disease can live cannot be generalized. STI is a juvenile form of arthritis with systemic onset, but a similar disease can also occur in adults, called adult STI. It is characterized by fever, arthralgia and/or arthritis, rash, myalgia, sore throat, enlarged lymph nodes, leukocytosis and neutrophilia, and thrombocytosis, with systemic damage in severe cases. The disease is often negative for rheumatoid factor and is associated with human leukocyte antigens such as HLA-B27, HLA-B35, and HLA-B44, etc. The disease is more varied in its onset, with a tendency for some patients to be self-limiting, with a single attack followed by no further episodes, but there are also cases of recurrent, chronic persistent activity. Therefore, the survival time of patients varies greatly depending on a number of factors such as the patient’s condition, personal constitution, and medical compliance behavior. If the patient develops serious diseases such as secondary glucocorticoid adverse reactions, infections, and hepatic failure, the prognosis is generally poorer, and the survival time may be relatively shorter. Patients with Still’s disease are advised to go to the Department of Rheumatology and Immunology of regular hospitals for detailed consultation.