I can understand your concern.
Since you seem to have noticed an asymptomatic skin colored lesion over your genitals, I am afraid that it is very essential to rule out genital warts
Such lesions tend to be Skin colored.
These are asymptomatic.
Genital warts are also very slow growing in nature's
Treatment may include chemical Cautery.
It is very important to diagnose them as early as possible or you may infect your partner too.
I would advise you to see a dermatologist
as soon as possible in order to rule out any such condition.
Hope it helps
Dr Geetika Paul.