What causes children's knees to crack?

Many mothers are worried when they find that their baby's knees make noises. Children's knee joint cartilage, ligaments, etc. are not fully developed, so it is normal for the knee joint to make noises during movement. However, if the baby feels pain or cries when moving the knee joint, you should pay attention. If your child's knee joints are red, swollen, stiff, and have limited mobility, you should be careful about childhood rheumatism, especially a disease that children are prone to after catching a cold. So no matter how hot it is in the summer, don't stay in an air-conditioned room for a long time to cool down, and don't sleep directly on the floor. When it is cool in the morning and evening, parents can take their children out to exercise more. Proper calcium supplementation and nutrition increase can improve children's immunity.

Generally speaking, if there is only a clicking sound but no pain or movement disorder, it is physiological clicking and does not require treatment or panic. However, if there is pain, you should pay attention to the following situations.

1. The sound at the front of the joint, at the patella: "The sound of fingernails scratching hair" is produced when the patellofemoral joint cartilage is damaged or degenerated, and the joint surface is not smooth, which is produced during movement. The most common disease is PFCS patellofemoral joint hypertension. Symptoms include pain when going up and down stairs and squatting.

2. Sound in the anterior and inner lower part of the joint: "Plucked and muffled" is a disease of the inner and lower part of the patella, Plica (synovial fold) syndrome, which is more common in men and mainly causes pain when going upstairs. You can feel something like a "cord" underneath the patella, which is tender.

3. Sound on the inside (outside) side of the joint: the crisp sound of "snapping nails". There is a high possibility of medial (lateral) meniscus injury. Symptoms include pain when twisting, pain on flat ground, pain when squatting, and sometimes getting stuck.

4. The sound inside the joints is like the sound of “crushing sand”. It is caused by damage, degeneration and loose bodies of the femoral and tibial articular surface cartilage. Symptoms include pain in middle-aged and elderly people when walking long distances, and some have "O"-shaped or "X"-shaped regression.

Children's physical development is not perfect, and the nutrition they need for growth must be comprehensive. When a child's knees make noises, as long as there are no abnormalities, you can supplement the child with adequate nutrition and increase exercise appropriately. There is no need to worry too much. As the child grows older, the ligaments and muscles become stronger, and the problem of joint noises will naturally disappear.