Excessive Urination Under Water?? :-)

[TracyN]

This is probably a stupid question with a simple answer but I'm going to ask it anyway. Since I started doing longer dives 1+ hours I've noticed that I have to urinate more frequently under water. I'm not talking little amounts either. I'm clearly urninating in excess of what I take in. On land I don't urinate any more than usual. I'm assuming it has something to do with the effects of increased pressure on the body.

 

[Ricky B]

This condition is a physiological response called immersion diuresis. It's caused by lower temperature as well as pressure. Here's a link with more info:

DAN | Medical Frequently Asked Questions

 

[TracyN]

Thanks I knew it was probably something simple.

 

[garydemos]

I wish wetsuits had a zipper where it counts!

 

[Brewone0to]

Seems quite normal.
Just so long as you ain't skeared when it's happen.:shocked2:

 

[spectrum]

Whatever you do, don't hold back on hydration!
Resistance is futile, and harmful.

Pete

 

[GrumpyOldGuy]

The technical explanation on the 2nd post hit the nail on the head. Topside, I go every 3-4 hours even when drinking. At night, in a warm cozy bed I never need to get up for a bathroom run. Put me in in a wetsuit and anything less the 70F water and it seems like every 20 minuets I am er, rewarming my suit. Just time it so it flushes out before you end the dive. If peeing in your suit repulses you, then get a dry suite and a pee valve.

 

[Wookie]

It's only excessive if it makes your wetsuit stink. Your wetsuit won't stink if you are properly hydrated unless you ate asparagus the night before.

 

[DandyDon]

It's only excessive if it makes your wetsuit stink. Your wetsuit won't stink if you are properly hydrated unless you ate asparagus the night before.

I'm still not going barefoot on any boat.

I take a small bottle of Pet Urine Remover on trips to spray my suits.

 

[Wookie]

I'm still not going barefoot on any boat.

I take a small bottle of Pet Urine Remover on trips to spray my suits.

That's right, you do wear footwear the whole time.

No-one cares if their own suit stinks, it's everyone else's stinky suit that everyone cares about. That's why we Sink-the-stink the rinse barrels.