My ferritin level is 603, it should be around 241 what can cause this and effects of it. also i lost 30lbs in 4mths, losing hair and sore lumpy groin?

Both to MD ASAP: You may have hemochromatosis, a treatable condition. Left untreated it can damage, liver, heart, pancreas, skin and other organs. If your weight loss was unintentional, it is a serious cause for concern. In either case you need to see your doctor asap.

Seriously concerned: The iron overload may be due to chronic inflammation / infection -- anything from glanders to lymphoid malignacy. Your physician can rule hemochromatosis in and out; or the high serum ferritin may be do other disease. Time for a full physical exam -- don't stop seeking the cause until it's found.