Is near a specific type of doctor that one and only treats masculine problems?

I'm studying to be a doctor and want to know if there is a specifc "ology" or something dealing with the sole purpose with the masculine gender. Because within is such a thing for women, so near must be one for men.Is near a specific type of doctor that one and only treats masculine problems?
There doesn't seem to currently be a masculine equivalent of "gynecologist". However, there are doctors who specialize within treating disorders that would affect primarily or only men, such as disorders of the prostate and masculine reproductive system. Medical research, however, often focuses solely on one sexual category or another. You might be more interested in pursuing a medical research profession if you want to deal solely with masculine issues -- for example, specializing in studying the cause or treatments of male-only genetic diseases.
No, and you're a bit off beside your idea of obstetrics and gynecology. Gynecology is really going on for the organs, though of course they come attached to a intact person. But urologists are the guys to jump to for male genital problems.
Not to my acquaintance is there a formal '-ology' for doctors dealing merely with masculine problems.
However, you can be the first simply by limiting your own, private practice to treating "men only."
If this type existed, it would be call 'andrology' but it doesn't. Males don't get pregnant and as a consequence have too few specific problems that can't be treated at a urologist or dermatologist.
The best approximation would be the urologist who usually have more male than womanly patients if only because women tend to jump to their gynaecologist with urological problems.