My 12 year old son's lower left leg really stated bothering him. he says it itches on the inside and feels like it's having spaziums?

Unable to diagnose: He needs to be evaluated by his provider. He could be having issues with an allergic reaction, but there may be other issues. He needs a hands on, in person evaluation.

Twitches: These may be muscular contractions or irritability of a nerve in the thigh. If other areas of the body also have spasms, we check for magnesium or calcium deficiencies. A neurologist is best qualified to evaluate these types of symptoms.If the symptoms remain localized to the inner leg only, a systemic problem is unlikely.