Effects of castration on dick size

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Jon246
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Effects of castration on dick size

Post by Jon246 »

Hello everyone, quick question for you all and just checking what is normal.

Has anyone else experienced quite a significant reduction in the size of their dick since getting castrated? I was never huge but there is no doubt at all that I have reduced in size, both length ways and also volume. My dick also feels more dense if that makes sense. Has anyone else experienced this?
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Re: Effects of castration on dick size

Post by TheRagingEunuch »

This is probably irrelevant since I am a Congenital Eunuch, but I was also blessed with Micropenis. My partner who has a short right arm, calls it my "stub". She also calls her arm that, so I guess she and I have a little in common. ;) /b]
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Re: Effects of castration on dick size

Post by WheelyFixed »

There is an old joke about "use it or lose it" The penis is basically a set of sponges in tubes that are soft and squishy when limp, but fill with blood when one gets excited, causing an erection. The regular erections one gets even when not sexually active, i.e. morning wood, fun dreams, porn, etc. keep that spongy tissue stretched out to some degree, even when limp.

When you get castrated, especially if you aren't doing testosterone replacement, you will probably get erections less often, if at all. This lack of 'exercise' will allow those sponges to shrink to some degree... How much seems highly variable, and it may depend on how much you started with, i.e. are you a 'shower' or a 'grower'. However it seems from reports that everyone shrinks some, but the minimum is about what you had when you hit puberty.

I've never heard anyone talk about 'density' before, so not sure on that angle. I don't think mine feels much different than it did before, but never really measured it. Given that most of the shrinkage is from reduced elasticity in those tissues, it does make sense that it might feel more dense.

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Re: Effects of castration on dick size

Post by NaturalEunuch »

Mine shrank immediately. Of course, I checked as soon as I woke up from the surgery and was surprised to see foreskin covering a good portion of the head of my penis. As a circumcised person, I was shocked that there was that much shrinkage.
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Re: Effects of castration on dick size

Post by WheelyFixed »

I have to do significant 'fishing' to find mine and drag it out of hiding... Of course considering that I have to catheterize, I can't really blame it for trying to hide... I'm actually not sure I could get enough out to pee neatly when standing or sitting if I didn't have to cath.

If I was a TAB, I'd probably be inclined to consider going nullo for that reason, but the usual re-route exit point is even worse when in a chair and needing to cath. (I have a female friend who said the only time she ever had "penis envy" was when she landed in rehab and the nurse came in w/ a mirror to give her lessons...)

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Re: Effects of castration on dick size

Post by Sakebigoe »

Mine hasn't changed really at all since my castration, I'm on a decently high dose of TRT though so I still get regular erections. As wheely said, it's very much a use it or lose it kinda situation.
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Re: Effects of castration on dick size

Post by Bibiballs »

Jon246 wrote: Fri Oct 24, 2025 6:38 pm Hello everyone, quick question for you all and just checking what is normal.

Has anyone else experienced quite a significant reduction in the size of their dick since getting castrated? I was never huge but there is no doubt at all that I have reduced in size, both length ways and also volume. My dick also feels more dense if that makes sense. Has anyone else experienced this?
Are you still able to get erected ? And if so do you appreciate the feeling of a more dense dick ?
As I was starting to get impotent, my penis is absolutely not dense. It is like marshmallow.
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Re: Effects of castration on dick size

Post by Jon246 »

Many thanks everyone for confirming that my shrinkage is nothing unusual and yes back to similar to pre puberty levels
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Re: Effects of castration on dick size

Post by Swim1650 »

Sakebigoe wrote: Sun Oct 26, 2025 12:35 am Mine hasn't changed really at all since my castration, I'm on a decently high dose of TRT though so I still get regular erections. As wheely said, it's very much a use it or lose it kinda situation.
Yeah, so long as you supplement the testosterone no longer being produced by the testicles, I wouldn’t expect too drastic of a change. From what I can tell when you block/remove T you reopen report 10–20% reduction.

I’m seeking castration + penectomy w/nerve preservation and afterwards taking TRT to maintain a masculine physique.

Either before any surgery or after only having castration/orchiectomy, I would interested in find out it if I could reduce my T levels enough to stop erections but enough to maintain a masculine body. Without erections, the penis will atrophy. I’m fine with that.

My flaccid penis is quite small. I’m a healthy 5’11” 28 year old… It’s short enough that it often just points straight out. When flaccid I’m less than 1/4” longer the clinical definition of a micropenis. I don’t think it’s an impossibility for atrophy of the shaft to retract itself entirely leaving just the glans visible. If my penis can’t get hard and it’s just the glands poking out 3/4”, it won’t flop around and can hardly be seen as a functioning penis. It’s more of a decoration.

Realistically, I’ll probably end up with a penectomy at the same time as the orchiectomy. That way no one will be able to say my dick is small. :D

But I need to schedule an appt and get the ball rolling
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Re: Effects of castration on dick size

Post by WheelyFixed »

Shrinkage is very much a "Your Mileage May Vary" question. Some shrink a lot, some hardly at all... Hormones definitely play a part, but don't explain all of the variations.

In terms of adjusting T levels, it is certainly possible to do that after surgery, we even have that mentioned as an advantage. Unfortunately there don't seem to be any real options to effectively lower T levels a small amount without surgery. The various drugs all seem to totally block either production of T or it's receptors (or both) to do effective chemical castration....

Since that is usually what doctors want to achieve (i.e. w/ cancer patients) I don't know if there is even any research on partial reductions. You might try looking at Finasteride or Spiranolactone as those have on-label uses other than T-reduction, but have ED as a sided effect... Some have used them off-label to get chemical castration or feminization.

WheelyFixed
Paraplegic - T-5, ASIA-B. 2010 Injury left non-functional & frustrated. 4/24/22, stop T. 5/4 start 3.75mg Lupron. 6/29 - T ~0. 7/7 - start E. 9/2 stop Lupron. 3/30/23 - GOT LETTERS! surgery (O&S) 9/28/23. Doing 0.75mg/day E patch as HRT
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