So when does this become a fetish?

When does it go from something fun to a fetish? I would say most men have a sexy nurse fantasy, or would love “playing” doctor at some level but what sets us apart? For me I think it's the enjoyment of medical realism, mixed with a real interest in anything medical. Once you have those two things it kind of evolves into this. I used to hate check ups and physicals as a kid yet found them interesting. Now I still don't really like them myself but find the idea of giving them sexual.

Medical fetish is fun as far as I'm concerned, I'm not particularly interested in the technical side of medical examination although that said I do attempt to conduct examinations in a realistic fashion. Personally I enjoy being in control and knowing the patient is embarrassed but aroused at the same time. The patient having to submit to being touched sometimes intimately is a turn on for me.

I believe that something sexual is considered to be a fetish when an object or a situation produces sexual arousal. But I'd say as a working definition it's rather broad since almost anything can fit into those categories. Some people need nudity to be become aroused, others manage quite well without it ...

I think it's better to talk of a fetish being a necessary precondition to sexual arousal, something that cannot be missing, something without which people do not become sexually aroused. Or also something which people do not ordinarily associate with sexual arousal, but which produces it in certain individuals - say like the classic wearing fur or high heels.

For a medical fetish I' say it's a bit of a borderline thing. Since there are lots of medical situations involving the removal of clothing or nudity, sexual elements will invariably enter into many medical situations, be it from getting an injection in the buttocks to getting a school exam or whatever.

So sometimes it's a bit fuzzy about what is or is not a fetish.

I can certainly become aroused without the need to play medical games, I find many things stimulate my sexual appetite. That being the case I don't have a medical fetish any more than I have a small breast fetish for example.

I never liked the word anyway, to me it suggests possible deviant behavior.

...as soon as you realize that your cock raises, it's become a fetish.

Iv always had an obsession with the buttocks and it was always my focus as a kid during "playing doctor"At this point i hated the visits to the doctor and would act very hostile to even the most non invasive procedures.

Once I discovered things went up the bum and no just out of it, (I witnesses a rectal temp) I was immediately intrigued and wanted a thermometer in my butt.

I was awhile later on a visits to the doctor that I would look at the thermometers and stay to myself please stick that in my bum... that's when I knew it was a fetish.

My obsession has always been buttocks too, but injections back there rather than rectal procedures. Throughout my youth and adolescence bending over a receptionist's lap for her to watch me get shots in my vulnerable bare bottom was a painful humiliation I would have done anything to avoid. Even then, however, sitting (or trying to sit) on the tender site afterwards aroused me with exciting reminiscence of the scenario that engendered my posterior soreness. Whilst continuing to fear the ordeal in reality, I found myself fantasising about it when no injections were imminent. The first time I recognised it as a fetish was playing doctor with my girlfriend in adolescence when every session ended by bending over or rolling over in bed for buttock injections realistically simulated with sterile pins. Eventually that fetish developed to the extent that I now find getting shots back there absolutely thrilling if given by beautiful nurses.

It becomes a fetish the minute that you do it because you like it, you crave it, and you want more of it, rather than need it for any other reason!