① Injury of ligaments around joints
When knee joint flexes slightly, the stability of knee ligament is relatively poor. If the external force suddenly causes eversion or eversion at this time, it may cause damage to the medial or lateral collateral ligament. The patient will have a clear history of trauma, knee pain, swelling, ecchymosis and limited mobility.
② Cartilage injury
Mainly meniscus injury of knee joint. When the knee joint is slightly flexed, if the knee joint suddenly turns inward or outward (such as the action of bending the calf and turning to kick the ball in football), it may cause meniscus tear. Meniscus injury will have obvious tearing sensation of knee joint, followed by joint pain, limited activity, limping and clicking when joint moves.
③ synovitis of joint
Due to factors such as trauma or excessive strain, a large amount of effusion will be produced after the synovium of the joint is damaged, which will increase the pressure in the joint, leading to joint pain, swelling, tenderness, friction and astringent sound. For example, when the knee joint is active and extremely straight, especially when there is some resistance to stretching the knee, it will aggravate the pain in the lower part of the patella. In passive extreme flexion, the pain will also be significantly aggravated.
④ autoimmune diseases
Immune system diseases such as lupus erythematosus and psoriasis can also invade joints and cause swelling and pain, which depends on blood tests to assist diagnosis.
⑤ Children's growing pains
This kind of patients are mainly growing children, more common in boys. Pain is common in knee and hip joints. This situation is a normal physiological phenomenon in children's growth and development. Because children's bones grow relatively fast, the growth and development of periosteum and local muscles are not coordinated, which causes discomfort and joint pain. Others believe that this kind of pain is caused by low-toxic infection.
⑥ Traumatic joint pain
Due to some accident or accident, the joints of shoulder, wrist, elbow, knee and ankle suffer trauma (such as soft tissue injury, fracture and dislocation, etc.). ) No fracture, resulting in joint pain.
⑦ Suppurative arthritis
Have a history of infection in other parts of the body or local injury. The painful joints may be swollen, and the deep part may not be obvious, but all of them have the phenomena of elevated body temperature, joint pain, immobility and elevated hemogram.
8 osteoarthritis
The onset age of osteoarthritis is mostly after 40 years old. Joint pain is heavier in the morning and lighter in the day and night. Hyperplasia of bone in joints and bone spurs rubbing against surrounding tissues can cause joint pain.
Pet-name ruby osteoporosis
Elderly women have pain in many joints all over the body and feel particularly weak. They can't walk with heavy loads. If other diseases are excluded, you may suffer from osteoporosis.
Indications for rheumatic and rheumatoid arthritis
Most of them occur in women aged 20-45. Rheumatoid arthritis is often a wandering pain (the location of the pain is uncertain). Pain, swelling and stiffness mostly occur in the wrist, and the sensitivity of joints occurs simultaneously with swelling and pain, and occurs symmetrically (such as both wrists and knees).
{1 1} gouty arthritis
Gout pain is common in the thumb and the first metatarsophalangeal joint (outside the thumb). Mainly because eating seafood and drinking alcohol lead to purine metabolism disorder. In the acute stage, the patient's local redness and pain are unbearable; In the chronic stage, patients may have pain, joint deformation and other manifestations.
{12} Pain caused by tumor
Local tumor of joint is also one of the important factors causing joint pain, which is more common in children and the elderly during their growth and development. If there is joint swelling and pain, the pain at night is more serious than during the day, and taking analgesic drugs is ineffective, and there is no reasonable reason to explain it. You should go to the hospital for further examination to rule out joint tumors.