Undifferentiated arthritis can be given general treatment, drug treatment. 1. General treatment: Undifferentiated arthritis can be relieved by rest, functional exercises, acupuncture and physiotherapy. 2. Medication: For undifferentiated arthritis, if the joint swelling and pain are mild, non-steroidal anti-inflammatory drugs such as celecoxib can be taken orally as prescribed by the doctor for anti-inflammatory and analgesic purposes. If the joint swelling and pain is severe, there is the possibility of progression to rheumatoid arthritis, treatment in addition to anti-inflammatory analgesic, may need to be combined with the use of disease-altering anti-rheumatic drugs, such as methotrexate, leflunomide and so on. The diagnosis of undifferentiated arthritis needs to exclude clear connective tissue diseases, tumors, infections, etc., and the treatment needs to be formulated according to the specific conditions. It is recommended that patients go to the rheumatology and immunology department of the hospital in time and follow the doctor’s instructions to standardize the treatment.