Thanks for your consult at DoctorSpring and the detail history.
There is no such well defined term like 'Traumatic masturbatory syndrome' in urology, so nothing much can be discussed about that. Masturbating in prone position is fine if you are doing it against soft surface. If you are doing it against hard surface it can lead to trauma.
As per your history you are smoker and also consume alcohol occasionally. They both have negative impact on your erection profile. To know the cause of erectile dysfunction you should go for penile doppler study with caverject injection (to rule out vascular cause). Anti depression medication also have negative effect on erection but more on libido.
You are 32 years old and sexually active so its better you plan for treatment of ED ( Erectile Dysfunction ).
Regarding darkening of median raphe, you have to send me the photographs to reach a decision/ diagnosis.
Hope this helps, Would be glad to answer any follow-ups.
Dr Gautam Banga
Patient replied :
Thanks for the clear answers. Ok then. I think it's a good idea for me to arrange the test you mentioned (penile doppler study with caverject injection) with a local lab then.
I've also attached some images I took of my median raphe (hope they are clear enough). As you can see, it is brownish on the skin on my testicles, and more reddish on my penis skin.
Also one other thing, recently (and I guess since about the same time of my major erectile dysfunction problem), my penis is most of the time shrank to its minimum length. I don't know if this gives you any new information, but just thought to mention. I've also included the image in the photo I've attached.
Scrotal skin can appear dark because it stays in a corrugated form and have various sweat glands, penile skin is relatively laxed. It has nothing to do with your erectile profile.
If penis is not erect it stays in contracted/ flaccid state and size depend on outside temperature . If you will stimulate the organ it will gradually increase in size. My advice is get that color doppler study done and on the basis of that we decide the line of treatment.
Dr Gautam Banga