What is the cause of the pain in the child's paint cap?

In life, knee pain in children is a common phenomenon in daily life, but if it occurs frequently and for a long time without effective relief, we need to be alert to the invasion of certain serious diseases. Moreover, sometimes due to regular lack of exercise, the body's health is at a low level, and even the slightest movement will cause pain. So let us understand the reasons for children's knee pain and what is going on!

The most common diseases that cause knee pain in children are:

1. Reasons for growth:

Growing pains are a common phenomenon that causes joint pain in children, especially in children aged 3 to 8 years old. Because bones grow rapidly, while the surrounding nerves, tendons, and muscles grow relatively slowly, pulling pain will occur. The pain usually occurs above and below the knee joint, and is aching or tingling, mostly in the evening or before going to bed. The pain lasts for a few minutes and rarely exceeds an hour. The pain has no obvious fixed location and is not accompanied by redness, swelling or heat. The pain will disappear quickly if hot compress or light massage is applied.

2. Hip synovitis:

It is a common disease that causes knee pain in children aged 3 to 10 years old. It is more common around 5 years old and is mostly unilateral, with acute hip pain or radiating to the inner thigh and knee. It is more common in boys than in girls. The child is unwilling to walk or has a limp on the affected limb when walking. There is no joint swelling, but there is localized tenderness. MRI examination shows a small amount of joint effusion. The pain may go away within hours or days. What should you do if your child has knee pain? Click here for online consultation with experts at Beijing Hospital of Traditional Chinese Medicine for Rheumatology.

3. Avascular necrosis of the femoral head:

In most cases, patients will experience unexplained limping, difficulty squatting, and pain on the inner side of the knee, but no local tenderness; tenderness in the center of the affected hip, internal and external rotation of the hip may induce pain, or partial limitation of movement; in the late stage, the pain will be relieved or there will be no symptoms, the affected limb muscles will atrophy or the lower limb will shorten, and the hip joint movement will be slightly limited or normal. 4. Rheumatic fever:

It causes pain in large joints such as the ankles, knees, hips, wrists, elbows, and shoulders, namely rheumatoid arthritis, which may be accompanied by varying degrees of joint swelling and tenderness. The pain is short-lived and sometimes subsides in just 1 to 2 days. If not controlled, it can cause rheumatic heart disease.

5. Other diseases:

Other diseases that cause knee pain include allergic purpura arthritis, rheumatoid arthritis, acute hematogenous osteomyelitis, acute suppurative arthritis, traumatic fractures and dislocations, etc. At the same time, it should be noted that there are various causes of children's knee pain, and the disease should be diagnosed as soon as possible.