Children with thigh root pain, consider that it may be related to muscle strain, hip synovitis, tumors, etc. You can cooperate with your doctor to receive physical, medication, surgery and other treatments to improve the symptoms. 1. Muscle strain: prolonged exercise may lead to muscle strain, and a large amount of lactic acid accumulates in the thigh root, which may cause thigh root pain. Hot compresses can be used to promote blood circulation and improve pain. 2. Hip synovitis: trauma, infection, perverse reaction and so on may lead to hip synovitis and pain. During the period of illness, non-steroidal anti-inflammatory drugs such as Celecoxib and Etoricoxib can be used as prescribed by the doctor to control the local inflammatory reaction. Antibiotics such as cefuroxime and levofloxacin may be used as prescribed if infection is present. If infected synovitis is not well treated with medication, minimally invasive synovectomy under arthroscopy may be needed. 3. Tumor: Children with neoplastic diseases, such as leukemia, lymphoma, etc., and the occurrence of bone metastases, may also cause thigh pain. At this time, it may be necessary to cooperate with the doctor to receive chemotherapy, hematopoietic stem cell transplantation and other treatments to improve the symptoms. There may be other causes of thigh pain, so it is recommended to take your child to the orthopedic department as soon as possible in order to identify the cause of the problem and receive treatment accordingly.