Psoriatic arthritis, which may get worse with age. Psoriatic arthritis is a sterile joint inflammation associated with psoriasis, which develops slowly and is prolonged over time. With age, joint damage will gradually aggravate. Psoriatic arthritis damages joints in the early stage, mainly manifesting as joint swelling, pain, unfavorable flexion and extension, mainly in the joints of the limbs. With the development of the disease, it gradually involves the sacroiliac joints and spinal joints, which will manifest as swelling, pain, joint deformity and stiffness in activities. Psoriatic arthritis treatment includes general treatment, such as pay attention to rest, keep warm, avoid cold, etc. Drugs can be oral non-steroidal anti-inflammatory analgesic drugs, such as diclofenac sodium, celecoxib, etc.; oral anti-rheumatic drugs, such as methotrexate, lancets, and in severe cases, glucocorticoid therapy such as dexamethasone, methylprednisolone, etc. can also be used. In the later stages of the disease, if the joints are stiff and deformed, and the pain is severe, it can also be treated by surgical joint replacement. If the symptoms of psoriatic arthritis appear, it is recommended that patients go to the hospital in time to improve the examination and receive regular treatment. The above medications should be used in accordance with medical advice.