Swelling usually indicates a physical condition or damage that requires medical attention. Swelling is often associated with physical damage or structural damage in the body, such as bones, tendons and ligaments. However, some forms of swelling may indicate a serious condition affecting the cardiovascular system. Children with swollen hands may also have conditions that require specialized medical care.

Hand injuries
Hand injuries are the most common cause of hand swelling. This happens when the blunt object hitting the child's hand damages the blood vessel. Bone contusions or fractures can also cause swelling, as well as tenderness and bruising. If the pain is severe or your child is unable to move or use her hand, fractures or other structural damage may occur. Call or go to the doctor to check your hand.
Sickle cell anemia
Sickle cell anemia is a hereditary disease that causes abnormal red blood cells in the body. Children with sickle cell anemia often suffer from hypoxia due to ischemia, because the ability of blood cells to carry oxygen throughout the body is reduced, and the shortened lifespan of sickle cells can lead to a shortage of blood cells in the body. The swelling of the child's hand due to sickle cell anemia may be an amazing development and should not be overlooked. Contact your doctor immediately to take your child to a doctor or emergency room.
Kawasaki disease
Kawasaki disease is a rare disease that most commonly affects children 5 years of age and younger. This is a mysterious disease that can only be determined by excluding other diseases as a possibility. Your child may have a fever for 5 days or more, and the disease can sometimes damage your child's heart and major arteries. Swelling on the hand is sometimes a symptom, although it usually does not develop on its own. If your child's hands are swollen, call your doctor.
Notes
The development of other symptoms, such as fever, chills, dizziness or nausea, may indicate a more serious development of a simple tissue damage in your child's body. When your child has swelling, call your doctor and report the injury and the accompanying symptoms. Of courseYour doctor can then decide whether to treat your child at home or have him receive professional medical care.