Deca Dick and Other Questions

My bad. Between the threads and questions you’ve asked I assumed you’d never done anything, should have read.

My other threads have all (where relevant) stated that I blast and cruise year round and have for years.

I would like to offer my second “my bad”. Let me know if you need any more.

Deca dick is caused because deca converts to DHN which is a much weaker hormone than DHT, which is hugely responsible for your erections. If you do not have enough DHT the weaker DHN will take over and give you a limp noodle. Run some proviron or Masteron along side your cycle. Test converts to DHT but it may or may not be enough for everyone.

How were your gains off the NPP?

Didn’t need one to begin with. Maybe if you actually read people’s posts before making an ass comment you wouldn’t need to say “my bad”.

This is true. My bad

Also, to show I do care an love you, I tried to help you with your source issues but the moderators deleted it.

Short answer: No. Or maybe yes.
Long answer: No. Or maybe yes, but with a ton more explanation.


They were excellent. I ran my calories at maintenance or MAYBE a little higher, and I went from 241 to 246 and went from 16% BF to 15% BF using the traditional bro science calculation method for BF%. I truly believe I added 8-9 lbs lean mass in 14 weeks. To be fair this was also my first ever run with nandrolone and would never expect to have that type of lean mass gain on any subsequent cycles.

The more I think about it the more I think it had to have been a little over maintenance because I had to eat lots more sugary foods than usual (relatively speaking “lots more”) to combat the shakes from low blood sugar.

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Ah… the age old what causes Deca Dick discussion.

  1. Some say it’s prolactin. Use caber they say. IMO rarely the cause and usual moderate doses of Nandrolone rarely cause prolactin to be exceedingly high

  2. Some say it’s DHN. Nandrolone causes displacement of DHT isn’t the penile tissue with DHN. Use higher test they say or masteron. IMO maybe or maybe partially.

  3. Some say it’s neurological. Nandrolone messes with your rewards pathways etc. It can cause a disconnected feeling from your libido and penile sensations. IMO highly likely a cause for most and possibly a mix with 2 above.

  4. Some says it’s your E2. Nandrolone aromatizes a fifth the rate of test. Some will overuse an AI not understanding their compounds. Tanking your E2 is crushing to libido. If this is your scenario it’s also a likely cause.

Summary… could be any or a combo of the above. Not to much effort in the scientific community diagnosing the causes since it’s a black market issue.

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I’m a strong believer it’s primarily the DHT issue. People get “deca dick” sometimes from just a few weeks into the first time they use deca or npp, is it really possible that your brain chemistry got such a rapid negative effect? I’m skeptical. Tren and deca definitely are neurotoxic and cause brain issues, but I would guess that they aren’t very acute. I think I remember you once saying that you enjoyed your first run of deca but then when you added it to your TRT it messed you up, so a combo of both things are definitely plausible. Maybe it also had to do with your age at the time you did both those runs

The DHT explanation makes sense, except we have clinical data (and a good meta analysis) that show a large percentage of men maintain all sexual functions without any DHT. So I read that and then I’m back to square one. I think it’s not the displacement of DHT that’s the cause but rather the insertion of DHN. In other words, if nand simply didn’t cause downstream DHN but simultaneously shut off all DHT you’d still be ok. That’s my working theory at least. So I go back to my original answer, which is basically shrugging shoulders emoji.

Then again you have guys that run deca only and are completely fine… AAS are a weird beast. If only we were allowed to do more research on them


That sounds like a wtf to me man. Thanks for all the help gentlemen. Steering me away from things I should not mess with. Thinking I’ll stay test only. Idk. I need to do more research as well.

Well my point wasn’t to scare you off but more to aid you in making an informed decision. If you know what you’re risking and take the plunge anyway thats a personal choice. Nandrolone is a fantastic mass building drug. At least now if try it you won’t come on here in two months and go ‘why did this happen?’.

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Look into tbol! Great oral with dry clean gains and very predictable side effect profile

I wasn’t saying you scared me off. I’m saying you did help me by helping me see risk/reward vs goals.

I’m aiming for somewhere between Jeff seid and Frank Zane. Bottom of the second ab is coming out so I’m guessing 15 ish bf% and still weighing 198 so shooting for 180lbs and seeing how I feel/look.

Glad you’re keeping your goals reasonable… :joy:

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Goals shouldn’t be reasonable. Expectations should.


SSRIs (which have a similar issue “post SSRI syndrome) change your brain chemistry within minutes after taking them. The negative effects manifest within the first 3 weeks and after that the positive effects become apparent. Nandrolone was shown in some good papers to change neurochemistry strongly.

These issues are so complex and so understudied that it’s way to difficult to make a good assumption.