Commonalities of arthritis: painful swollen joints, triggered or aggravated by weather changes! The characteristics of different arthritis: 1, rheumatoid arthritis: female prevalence, symmetrical small joint involvement, often with significant morning stiffness, without treatment can lead to serious joint destruction deformity. 2, osteoarthritis: mostly seen in middle-aged and elderly obese people, weight-bearing joints such as the knee and hip joints are more common, typical performance up and down the stairs pain, squatting after standing up difficulties. 3, ankylosing spondylitis: common in young and middle-aged males, low back pain, aggravated after rest, reduced after activity, often asymmetrical involvement of peripheral joints, there are often hunchback patients in the family. 4.SLE joint involvement: Mostly seen in women of childbearing age, often accompanied by facial erythema, oral ulcers and hair loss, joint destruction may be present but is less common. 5, gouty arthritis: also known as “rich disease” “emperor’s disease”, common in young and strong men, mostly after drinking and eating meat, acute attacks, pain, the initial onset of the site is mostly located in the unilateral “big toe “joint, some patients have a clear family history of morbidity. 6, psoriatic arthritis: easily overlooked arthritis, patients with psoriasis (scientific name psoriasis), poor control when a single joint swelling pain, most commonly a single asymmetrical finger or toe distal joint swelling is salami-like swelling. 7, reactive arthritis: weeks before the onset of the disease, there is often a history of urinary tract infection or digestive system infection, after the onset of the disease, there is often hard erythema of both lower legs, accompanied by pain, the joints are often unilaterally asymmetrically involved. 8, dry syndrome joint involvement: common in middle-aged and elderly women, with a history of dry mouth and eyes accompanied by tooth loss, and in severe cases can involve all mucosal tissues, accompanied by obvious weakness and discomfort, joint swelling and pain in such patients is mostly non-destructive swelling and discomfort. 9, infectious arthritis: generally involves only a single joint, mainly weight-bearing joints, often accompanied by chills and fever and other discomfort, superficial joints can be manifested as obvious redness, swelling and heat pain. 10, rheumatic fever arthritis: often large joints are involved, the involved joints are wandering, laboratory tests are significantly elevated anti-chain O, which is now rare. 11, undifferentiated connective tissue disease: is the early state of many rheumatic diseases, joint swelling and pain is not manifested as a characteristic of rheumatoid arthritis, such patients often have abnormal immune indicators, early intervention, the need for long-term follow-up rheumatology, part of the prognosis is good. 12, scleroderma arthritis: very similar to rheumatoid arthritis, but there is often a white and purple hands when exposed to cold performance, in addition, the skin of the hands become hard and tight is one of the characteristic performance. 13, myositis and dermatomyositis: when there are joint symptoms very similar to rheumatoid arthritis, but the disease has muscle weakness, pressure pain, examination has muscle enzyme abnormalities, the skin can have characteristic skin manifestations. If you have any of these symptoms you should promptly visit a rheumatologist. This is because, regardless of the type of arthritis, as long as it is diagnosed correctly at an early stage and given proper treatment, it can be intact as before.