Thanks all for the advice! The genetic end is the answer I get most often.
As far as the cyst, he had a sonogram and it is just a cyst that the technician said is common in this age group.
I don't believe in going to the doctors unless really needed so no he has not been on Antibiotic in years. Besides the hairloss he is healthy. Oh and he works out at the gym and plays basketball competively.
Iodine is good either way, so I will just incorporate it into his daily diet and see what happens.