What causes synovitis in children?

Synovitis in children is usually caused by infection, trauma or immune system abnormalities, which is inflammation of the synovium in the joints. Common causes include viral infections, bacterial infections, joint overuse or immune diseases. Treatment includes medication, physical therapy and lifestyle adjustments.

1. Infection factors

The most common cause of synovitis in young children is a viral infection, such as influenza or enterovirus. These viruses may enter the body through the respiratory tract or digestive tract and cause synovitis. Bacterial infections are less common but may be caused by trauma or surgery. Infectious synovitis is usually accompanied by fever, redness, swelling, and pain in the joints.

2. Traumatic factors

Young children are very active and their joints are easily impacted or sprained, which can damage the synovium. Repeated joint strain can also cause chronic synovitis. For example, running or jumping for a long time can increase the burden on the knee joint and induce inflammation.

3. Immune system abnormalities

Some cases of synovitis in children are associated with abnormalities in the immune system, such as juvenile idiopathic arthritis, an autoimmune disease in which the immune system mistakenly attacks the synovium in the joints, causing inflammation and pain.

Treatment:

1. Drug treatment

NSAIDs such as ibuprofen can relieve pain and inflammation.

Antibiotics are used to treat synovitis caused by bacterial infection.

Immunosuppressants are used to treat synovitis caused by abnormal immune system.

2. Physical therapy

Applying heat or cold can reduce joint swelling and pain.

Gentle range of motion exercises can help restore joint function.

Avoid strenuous exercise to reduce the burden on joints.

3. Lifestyle Adjustment

Get enough rest and avoid excessive activity.

Add foods rich in vitamin C and protein, such as oranges and eggs, to your diet to promote tissue repair.

Keep warm and avoid cold joints.

Although synovitis in young children is common, the prognosis is good in most cases. Parents should pay close attention to their children's symptoms, seek medical treatment in time and follow the doctor's advice. With appropriate medication, physical therapy and lifestyle adjustments, most children can recover within a few weeks.