PFS sufferer of 3 years here.
Whenever I have the urge for a bowel movement and when I have a bowel movement my penis completely shrivels and almost retracts into my stomach skin. When I am done with my bowel movement my penis stays shriveled up for around 1-2 minutes and then returns to normal size. It has been like this since I developed PFS. Anybody else who have experienced this and is it dangerous? And sorry for the english I am not a native speaker. 
Same. Check out my posts i talked about this before.
Lol literally the exact same shit happens to me. You are not alone
Same here
I suspect this might be natural (see: the bulbocavernosus reflex), but I never noticed it until I took fin and I’ve only ever seen people on pfs forums talk about.
I have the same my suffermate! The good news is my penis became healthy looking and feeling again , and orgasm pleasure also somewhat back so these minutes before crap dont effect my mind anymore…
Would be happy to understand why we developed this shit after fin. Def some blood circulation issue
Sounds like classic hard flaccid symptom - a form of pelvic floor dysfunction. I get this too and many others with HF. Its not exclusive to PSSD/PFS/PAS. Many men get pelvic floor dysfunction for a lot of different reasons that causes shriveled up penis. Look into hard flaccid / pevlic floor dysfunction and maybe try stretching and doing PT.
Does it sound like a pelvic floor problem?
Thank you.
Yes it does - look into “Hard Flaccid” - its been discussed a lot of this site - just use that as a key phrase to search through the posts.
But how finasteride can cause this problem?
Not exactly clear at the moment but something is probably disrupting the smooth muscle contractions. Its usually linked to anxiety and the body’s ability to relax or stay in a tense state. Also, fascia and muscle tension come into play. But this is more common then you would think - even plenty of guys get this from lifting in gym, trying to make penis longer, sexual injury, certain meds or steroids, even weed. Its a complex issue and no one knows for sure why - stretching and maybe a low inflammation diet could help
I need to find some physio to check me from the outside and inside.
Yes exactly - find a pelvic floor specialist who is familiar with hard flaccid (not all of them are - a lot are use to just working with woman). Find one that has worked with plenty of men too. And they will access you and tell you if ur pelvic floor is tight etc
The thing is im worried that if i have mental sides too then the cause can be hard to find by physio 
Addressing the pelvic floor problems is not addressing the root cause - I wouldnt go into that with them as they will have no idea what PFS is. This is just about symptoms management. Of course keep looking for ways to get better from PFS and that should in turn help the pelvic stuff. hope that makes sense - i wrote this quickly - I am not giving you any advice - just telling you that if u have a tight pelvic floor then a physio might be able to provide some relief - but yes I agree that it is not addressing the root cause - but there is no proven cure yet for pfs
Yeah yeah i know i wont mention pfs. But need to go there as self diagnose i think is not possible. Cant know if i have tight pelvic.
I don’t think I’ve gotten back to normal as in before Fin but this symptom for me has definitely gotten better over time but he started getting better when I actively tried relaxing my pelvic floor through mental and physical exercises or relaxation techniques if you will.
I believe Fin among many things induced a stressful environment mentally and physically
So part of the problem is a tightened pelvic floor and I think cause some kind of dysfunction.
Blood flow, relaxation of muscle and mind
Not saying it’s a cute but it sure is worth a shot and may very well help the symptom.
Also
Disclaimer (not recommending you do it. You do what you think you should with a doctors help) The health of my penis increased when I did TRT. More bloodblow, it regained more size as a result of blood flow. More color.
I just think the hormones helped build up and repair down there.
I really just went with what I thought would help me and it did…that and time. Many MANY bad days but thankfully I’m doing ok
Not spectacular but I’m managimg
It gets better
What about applying topical DHT on penis? What would be the result? This and physiotherapy should do the trick or it is dangerous/wrong?
@devils342 You could have a hormone test. If your hormones are fine and you react badly to androgenic supplements, you may have the androgen receptor issue in theory. Do your phisiotherapy or whatnot if you want, i doubt it will “cure” you. It only can “help” you to fix the root issue.
It should be noted that if this were something which was as simple a process as Cooper suggests, we’d have more recoveries.
You’ve been banned before for telling people how to fix themselves, yet you haven’t fixed yourself?