I am 67 years old ..I was diagnosed with early type two diabetes but my numbers dont go above 6.5 so i work hard to keep it under control with medication.... this has been two years.. I am also adopted but my father was greek and my mother english. I am uncircumsized... no problems then until lately noticed the head of my foreskin is going white in colour like when i was young.. since as i got older my foreskin and testicles seem to have always darkend with age . there is no pain etc... is this vitilago? affect of diabetes? i have not had any sexual activity for three years... just curious.. as it looks weird to me. when the rest of my penis is darker.. just started about 5 months ago gradually lightening in colour there. thanks