10-year-old girl ankle pain may be related to calcium deficiency, muscle strain, rheumatoid arthritis and other factors. 1. Calcium deficiency: girls at the age of 10 are in puberty, the body’s demand for calcium is relatively large, if you do not pay attention to dietary intake of calcium, may lead to calcium deficiency, thus appearing ankle pain. 2. Muscle strain: girls who have recently fallen, or sprained, may also lead to local joint muscle strain, ankle pain phenomenon. 3. Rheumatoid arthritis: rheumatoid arthritis can also lead to the above situation, you can go to the hospital to improve the blood sedimentation and other tests, to clarify the cause of the disease and actively treat the symptoms. 10-year-old girl ankle pain may also have other reasons, it is recommended to go to the hospital in time to carry out relevant examinations, clear causes and then actively treat the symptoms.