Hi! i am irfan. my younger brother is almost of 6 years.his ck(cpk) serum count is above 12000. so what should i look into for this matter.plz help.

Get evaluated: This may be anything from muscular dystrophy to polymyositis / dermatomyositis to a recent injury. Severe exercise may rise CK into the thousands but usually not this high. Junior will get a workup by competent physicians. The best you can do is educate yourself about his condition when an accurate diagnosis is made, and be a good brother for him in a world that's often cruel.