| | strech marks/tense penis head
Hi I've searched on this online but haven't found anything. The head of my penis sometimes gets tense and some stretch marks type cracks start sowing up on it. There is no pain. I should also note that my anus area sometimes gets itchy and that's usually when the stretch marks also start showing up. I also feel dehydrated and overly sleepy at those times.
I went to the doctor, he did the urine and blood test (twice) and nothing showed up but I'm not convinced that this is ok.
I'm currently not sexually active.
Any ideas on what it could be?