Welcome to HealthcareMagic. Some darkening of the skin around the genital region, specially in males is of course common.This we can say is due to increased pigmentation around that area. It is well noted around the scrotal region.And this is more with the dark skinned people.But apart from being physiological, it is seen if there is some hormonal
problem like Addisons disease, a disorder of adrenal glands
.Then there are certain drugs which cause this hyperpigmentation
like, antimalarials, antiepileptic drugs, certain antibiotics,a medicine for the heart's rythm (amiodarone
), drug for AIDS, drug for Tuberculosis(rifampicin
).Or it could be after an episode of drug eruption, after viral fever/ herpes, after any skin problem (eczema)- specially during the resolving stage.Then there are certain hereditary disorders as well, which you may correlate yourself. So please first of all try to find out if this darkening is due to any of these problems. Then accordingly, visit your physician and he would recommend you the required tests to be done and also the specific treatments. Hope I could answer your query. Take care.