Raised alkaline phosphatase (The normal range is 44 to 147 IU/L (international units per liter) is often found in a growing child and at puberty. There are several bone disorders too that can raise this enzyme like rickets,
osteomalacia, Paget’s disease of the bone, tumors, metastasis and recent fracture. An elevation in AP is often seen in cholestatic liver disease, pregnancy (obviously not in your case), bone disease, and occasionally with inflammatory bowel disease.