Characteristics of Rheumatic Diseases: Rheumatic diseases are a group of diseases that affect bones, joints and their surrounding soft tissues, such as muscles, fascia, tendons, bursae, nerves, etc. Rheumatic diseases are commonly seen in the rheumatology and immunology departments. Rheumatoid arthritis, osteoarthritis, osteoporosis, gout, systemic lupus erythematosus, rheumatic diseases refer to a group of diseases affecting the bones, joints and their surrounding soft tissues such as muscles, fascia, tendons, bursae, nerves and so on. Common diseases in rheumatology include rheumatoid arthritis, osteoarthritis, osteoporosis, gout, systemic lupus erythematosus, dry syndrome, ankylosing spondylitis, and psoriatic arthritis. Since these diseases do not pose a serious threat to our health in a short period of time, many people do not pay enough attention to them or do not know which department to consult, and delays in diagnosis and treatment are more common, and in serious cases, they can lead to disability. Therefore, we should be vigilant and seek medical attention in time to achieve early detection, early diagnosis and early treatment to improve our quality of life. If the following symptoms occur, you need to consult the Rheumatology and Immunology Clinic 1, unexplained fever 2, skin and mucous membrane manifestations: facial erythema, generalized rash, erythema nodosum, recurrent oral ulcers, vulvar ulcers, skin ulcers, reticulocyanotic macules, photoallergy, and alopecia. Joint pain or swelling, dry mouth and eyes, myalgia and muscle weakness, alternating hip pain or low back pain. 4. Raynaud’s phenomenon: hands or feet turn white when exposed to cold or emotional changes, and then turn red when warmed up or emotionally stabilized, and finally turn to normal color. 5, Departmental symptoms: such as frequent iritis, scleritis, uveitis and so on. 6.Multi-system or organ damage: manifested as unexplained proteinuria, interstitial pneumonia, pleural fluid, ascites, anemia, thrombocytopenia, etc. 7, other manifestations: such as recurrent thrombosis, habitual abortion, joint or muscle stiffness, recurrent auricular swelling and pain, recurrent purulent or bloody nasal mucus, waxy fingers (toes), local or generalized sclerosis of the skin, generalized pain with insomnia and limb fear of cold and chills, etc. may be a rheumatoid immune disease manifestations. 8, abnormal laboratory indicators: physical examination or laboratory findings: rheumatoid factor, blood sedimentation, C-reactive protein, HLA-B27, anti-nuclear antibody, anti-ds-DNA antibody, anti-ENA antibody, anti-platelet antibody, anti-cardiolipin antibody and other abnormalities.