In daily life, when arthritis is mentioned, we think of proliferative arthritis, rheumatoid arthritis, rheumatoid arthritis, and gouty arthritis. In fact, there are some lesser-known arthritis in clinical practice, and these particular types of arthritis should be noted because they are very easy to be misdiagnosed. 1, diabetic arthritis Diabetes is also prone to complications of osteoarthropathy, usually this type of arthritis occurs in the foot and ankle, mainly for the joint metatarsal tarsal, metatarsal phalangeal joint involvement, often preceded by mild trauma or sprain, the local bone may have deformity. Examination reveals prominence of the dorsum of the foot or the bottom of the foot, without obvious pressure pain, with callus (callus) formation. When the metatarsophalangeal joint is involved, significant callus formation can be seen on examination. x-ray shows osteoporosis, osteolysis of the lesioned bone end, bone destruction and fragmentation, etc. Prevention and treatment measures: First of all, diabetes should be actively treated, the joint lesion should be braked and deformity corrected, orthopedic shoes should be worn, effective antibiotics should be used to control infection, the affected limb should avoid weight bearing, and trauma should be reduced. 2, neurological arthritis caused by neurological diseases such as cremasteric cavitation, cremasteric consumption, hemiplegia or paraplegia and peripheral nerve injury, causing extensive destruction of joint cartilage and bone, medically known as neurological arthritis. The main manifestations are redness, swelling, pain and fluid accumulation in the joint area, mostly with underlying swelling and joint instability, which is very similar to rheumatoid arthritis and is therefore often misdiagnosed. The lesions are quite rapid, with significant radiographic changes appearing within weeks or even days, and fragmentation and subluxation of the bony ends of the joint usually appearing within 8 weeks. Prevention and treatment measures: First of all, the primary disease should be treated to eliminate the cause of the disease. In the acute stage, pay attention to rest and use brace to protect the joint early to prevent the development of deformity and bone destruction. 3, psoriatic arthritis About 2.6 to 4% of patients with psoriasis are accompanied by arthritis, which is currently considered to be a seronegative arthropathy. Arthritis occurs after psoriasis has been present for many years, and the onset of the disease is mainly in the interphalangeal joints, where redness, swelling, heat and pain in the joints are evident and recurrent. At a later stage, the bone itself undergoes morphological changes, and changes such as bone erosion, sclerosis and hyperplasia of the joint edges may be seen on X-rays. Prevention and treatment measures: usually take aspirin, anti-inflammatory pain, etc. can get better results, serious people can take prednisone drugs under the guidance of doctors. 4, dysentery arthritis It refers to the arthritis caused by bacterial dysentery, accounting for about 1 to 5% of patients with dysentery. In the dysentery at the same time or 7 days to 2 months after healing, the symptoms similar to rheumatoid arthritis, but the blood sedimentation, anti “O” is generally normal, rheumatoid factor test is normal. Prevention and treatment measures: this disease is usually treated with anti-inflammatory pain and other drugs for the best, the whole course of treatment takes more than 3 to 6 months. 5, drug arthritis This is due to the use of drugs after the body’s reaction to drugs caused by the medical source of disease, drug allergies, metabolic disorders and drug poisoning can cause this disease. The common drugs that cause drug arthritis are tetanus antitoxin, penicillins, thioureas, aspirin, isoniazid, etc. Prevention and treatment measures: The treatment of this disease is relatively simple, immediately stop using the relevant drugs, the symptoms can gradually disappear. Hormones have the effect of accelerating the relief of symptoms, but should not be abused. 6.Pubic joint arthritis is common in married women. The pubic symphysis joint is located in the front half of the pelvis, the joint surface is covered with transparent cartilage, the joint is surrounded by fibrous ligament attachment, and rich neurovascular, under normal circumstances, the pubic symphysis joint spacing of pregnant women can widen 0.1 ~ 1.6 cm, when women are affected by pregnancy, childbirth, abortion or surgery and other factors, can lead to the pubic symphysis joint blood flow disorders, joint cartilage necrosis, resulting in the formation of pubic symphysis Joint arthritis. The main manifestation is pain in the lower abdomen after childbirth or surgery, which spreads to the inner thighs. When standing or when the lower limbs are abducted, the pain is obviously aggravated, and there is obvious local pressure pain, but no redness, swelling or fever. Prevention and treatment measures: Conservative treatment is generally used, such as bed rest and analgesic drugs, but it takes a long time to recover.