I hope this allowed if not I'll delete. Just picked up my Trek Fx S 6 and its the first bike I've been on in about 16 years. My first ride to work was on Friday 10.3 miles. I had zero issues on the ride other than realizing im out of shape. On the ride back I felt a sharp pain in my testicles while siting on the seat riding uphill. The pain went away immediately so I thought nothing of it. Today i got back on to do a few laps around my neighborhood and right when i got on my bike I felt a sharp pain on the right side of my testicle. It feels lile a pinch. I dont feel it any other time except when im on the seat. Its not a horrible pain but its not normal. Any ideas on what it might be?

See.
A.
Doctor.

Try adjusting your seat, if that doesn't work, try a new seat. If that doesn't work, see a doctor. Unless you feel a lump or something, in which case, just see a doctor.

See the doctor FIRST.

That could be a hernia.

Do you wear cycling-specific clothing? If you were wearing gym shorts or cut-offs, it might be a clothing issue.

Could be cancer, could be a lot of things. But the fact that he's only experienced it on the bike suggests it probably is something he's doing on the bike.

Barring any actual medical issues after seeing your actual doctor and not the BikeForum Medical Center, check your saddle positioning, angle, tilt, height.

Considering the rate of cancer, and the rate of hernias, I am going with hernia as being likely, and cancer being unlikely.

And I'm going with his seat's squeezing his nut as being the most likely.

I agree, feel for lumps/pain off the bike, if you find nothing its probably seat position or just seat. Like earlier I would also ask if your wearing cycling specific clothing or not, cause I'm sure the ole boxers on the bike could cause some pinching here or there.

Being that this seems to be an intermittent thing, I'd guess that it's a saddle/clothing/position issue.

I'd take it back to the shop you bought it from and see if they can adjust the saddle to better suit your position. Generally, adjustments like these are free on new bikes so shouldn't be any cost to you. Just let them know what's happening and they can work with you. One of the advantages of buying a new bike from the LBS. Take advantage of it.

IKR. Some people liker to assume the worst. I ride for sport, travel and transportation. Even I pinch something now and again, especially if I am wearing street clothes.

Well, first, if this is the first time in many years you have been riding, it's probably some sort of physical thing from the bike. You also may want to ask the LBS to check the fit and setup of your bike. And check your cycling pants. Loose ones can allow things to get twisted up.

That said, this also could be the biking activity drawing attention to something else. If your testicles are important to you, see a doctor. Else, take the advice of others here who have
1) likely no medical degree
2) have not done a physical exam and have no test results
3) may be prejudiced by there own experience, which may have completely different causes that your issue

Seriously. Steve Jobs trolled the internet for new-age miracle cures for a cancer that was eminently treatable, with a high likelihood of success, using conventional therapies. This delayed him getting the standard treatment, and this delay killed him. See a doc!

You ever go to the doctor with something as vague as that? I have, and they usually say "sounds like you did something on ____, I wouldn't worry about it." That's why I suggested quickly ruling out the likely suspects before you go to the doctor. Nowhere did I suggest ignore it for years while you treat it with loganberries. He's not going to keel over from something if he takes a couple days to see if he can sort it out before running in to the doctor.

Sorry, livedarklions, I just have seen a lot of folks asking pretty involved medical questions on this (or other) forums. Note that I suggested that the OP check his fit and his kit first.

There could be an issue with a hernia, I suppose (as mentioned above), but you're right: I'd probably adjust my bike and change shorts and see if that helped first.

Maybe I'm tired, but this is way too funny.

On the OP's question, I got nothin'. Being a Doctor of Philosophy, I know nothing about actual medical issues.

As unlikely as a serious medical problem seems, please get it checked out. The odds may be against it, but the odds still allow for it. I lost a young friend because of the attitude of "it's probably nothing". You have nothing to loose by having it checked out.

You could comment on the futility of existence and posting advice on the internet...

Ah, this is what I said, kind of, except that tagaproject6’s answer is wittier and more concise. Sigh.
Tagproject6 and rgconner should develop a script for a nightclub act. This is funny.Thanks to both.

Yes. I wish BF had a "like" button.

Thanks for the responses. I'll take the bike back and see if they can adjust my seat. I don't wear any spicific bike clothes yet, just sports shorts and dri fits. The seat definitely isn't comfortable but this bike isn't meant for casual riding I'd assume. Ive only been on the bike 5 times so far so I assumed it was just something i was doing wrong.

Important topics have dragged me out of years of lurking woodwork this week, so forgive the low post count.

There's nothing more alarming than seeing people seeking important advice from poor source. You do not seek medical advice from anonymous strangers on the internet. Many of my friends are doctors and nurses, and almost all of the complex cases they see were preventable at some point, had the patient sought good care and followed through on treatment.

One reason I really like this forum is that so many people already know this, and instead of playing a doctor on the web, tell people to see a doctor.

See a doctor.

Or you could be...

Candiru

I don't think we can jump to conclusions and think the worst possible thing in a situation like this. For one thing seat discomfort is probably the most common complaint for any cyclist. It certainly deserves a bit more investigation first.

Second, we don't know a thing about the OP's medical history or physical condition. For all we know the cause could be something as minor as a seat misalignment.

Finally, there's nothing inherently wrong with seeking feedback or advice from others -- that's one of the principle reasons website such as this exist -- as long as the adult understands that the primary person that should decide about his well-being remains with his doctor and ultimately, himself.

On a personal note, getting input from others have helped me immensely by offering their experience and keeping me from being the victim of poor medical treatment, i.e., helping me ask the right questions about my treatment, and avoiding pill mill medical practitioners.