Bladder Discomfort
As an inexperienced diver, with less than 50 dives since being certified last year, I have an unrelenting dilemma. No matter how many times I void, I always end a dive having to desperately go to the bathroom. My stomach will be bloated and I can't get my tank and wetsuit off quickly enough. I purposely don't drink before a dive, except two cups of morning coffee, and it seems I should be properly hydrated.
I go to the bathroom before I get in the water and immediately after the dive. (I refuse to urinate in my wetsuit.) How can I control this? I don't have a weak bladder or any form of incontinence.
I go to the bathroom before I get in the water and immediately after the dive. (I refuse to urinate in my wetsuit.) How can I control this? I don't have a weak bladder or any form of incontinence.
The answer to this interesting dilemma is based on an understanding of dive physiology. The phenomenon you describe is known as immersion diuresis and occurs whenever the body is emerged in water. Immersion, along with a water temperature that is colder than air, causes narrowing of the blood vessels in the extremities. This vasoconstriction occurs primarily in the skin and superficial tissues of the body as well as in the muscles of the arms and legs. The result: An increased volume of blood is sent to the central organs of the body such as the heart, lungs and large internal blood vessels.
The hormone that controls the production of urine by the kidneys is called antidiuretic hormone (ADH). It controls when and how much urine your kidneys make. The increased blood volume to the major vessels is interpreted by your body as a fluid overload. This overload causes ADH production to stop, which in turn allows the kidneys to immediately produce urine to lower the centrally circulating blood volume the body's automatic response to preserve blood volume. Once you exit the water, circulating blood volume returns to near normal-less the fluid taken to produce urine, which is quickly replaced as the body draws fluid from body tissues, such as muscles.
Unfortunately, you probably will also leave the water with a full bladder. Since we are all subject to the same phenomenon underwater, this is probably your normal response to immersion. If this situation causes problems like urinary tract infections, see your doctor.
If your coffee is caffeinated, you may wish to switch to a decaffeinated brand, as caffeine is a known diuretic that also interferes with the production of ADH.
The hormone that controls the production of urine by the kidneys is called antidiuretic hormone (ADH). It controls when and how much urine your kidneys make. The increased blood volume to the major vessels is interpreted by your body as a fluid overload. This overload causes ADH production to stop, which in turn allows the kidneys to immediately produce urine to lower the centrally circulating blood volume the body's automatic response to preserve blood volume. Once you exit the water, circulating blood volume returns to near normal-less the fluid taken to produce urine, which is quickly replaced as the body draws fluid from body tissues, such as muscles.
Unfortunately, you probably will also leave the water with a full bladder. Since we are all subject to the same phenomenon underwater, this is probably your normal response to immersion. If this situation causes problems like urinary tract infections, see your doctor.
If your coffee is caffeinated, you may wish to switch to a decaffeinated brand, as caffeine is a known diuretic that also interferes with the production of ADH.
Posted in Dive Safety FAQ
Categories
2024
2023
January
March
Demo DiversCape Marine Research and Diver DevelopmentKaboom!....The Big Oxygen Safety IssueTerrific Freedive Mode“LIGHTS, Film, Action!”Scuba Nudi ClothingDive into Freedive InstructionThe Benefits of Being BaldThe Inhaca Ocean Alliance.Special Forces DiverToughing It Out Is DangerousWhat Dive Computers Don\'t Know | PART 2
April
July
August
September
Avoid Diving With EarplugsKwaZulu Natal shipwrecks: The ProduceDive in the Fast Lane with DPVsLearning from Success. Learning from MistakeLiability in ContextUnderwater Crime Scene InvestigatorsTravel Smarter: Personal Safety While TravelingDive Boat Etiquette – From Yachts to rubber ducksThe Parting ShotMismatched Scuba Valves to Cylinder OutletsPredive Warm-UpWeight loss for diversTara Panton's Cape NudibranchsRESEARCHER PROFILE: Petar Denoble: Solving practical issues for diversMonitoring Cardiac Health in Scuba Divers
October
2022
January
February
UNCERTAINTY AFTER DIVING: Case Report and Recommendations #1.UNCERTAINTY AFTER DIVING: Case Report and Recommendations #2UNCERTAINTY AFTER DIVING: Case Report and Recommendations #3UNCERTAINTY AFTER DIVING: Case Report and Recommendations #4DIVERS LOSING ACCESS TO EMERGENCY CAREPreventing Breathing gas Contamination
March
When Should the Rescue Begin?Celebrating Young and Old in Turks and CaicosScuba Cylinder RundownChasing WeedsUnderwater Smartphone PhotographyAir and a SpareUnderwater Photographer: Fred BuyleBuilding Better BalanceLow-Visibility DivingMore Than a Sore ShoulderNot Only for DivingLaryngospasm and AnxietyPulmonary Hypertension and DivingTitan Meets TitanicPool Operation: Know Before you GoThe Argonaut Octopus and the jellyfishShort but Beautiful Lives
7 Comments
This is interesting, as I have always suffered the same problem, as a diver. It's great to know it's normal and I now know who the wet suit "pee-ers" are. they are the ones not charging for the toilets after a dive.
Stop the refusal. Science says: pee in your wetsuit. Hence the wetsuit shampoo market. ;) Many people get urinary tract infection simply because they refuse to listen to mother nature. It is always useful to note the many effects entering water, (nevermind compression during diving) have on the body, i.e. lowering of heart rate, pupil dilation, hormonal releases etc
To protect your organs you should absolutely urinate
While diving. Anything else is just silly. In addition if you experience uti’s which I sometimes do prophylactic antibiotics work great.
Well then... 50 dives and he refuses to wee in his wetsuit.... we go back to the 3 categories about this: the ones who do (I've doing it for ever, and infact it also happens during swimming sessions, so unlike many people believe, this natural reaction of the body is not related to depth or pressure), then the ones who lie.... and our friend here is one of the "ones who will".... Why make a fuss and suffer from a perfectly normal and natural situation...
I drink lots of water and pee in my wet suit. In fact it's like I have to go. Plus it gives you a nice warm feeling when the water is cold.%uD83D%uDE1C
Not in a dry suit. Interesting
Thanks for this string of comments and contributions! Pool hygiene issues aside - it is definitely better to urinate in the wetsuit than hold it in! Apart from the discomfort, irritation of the bladder and prostate, and increased chance of urinary infection, there is another danger: People often deliberately deny themselves fluids and dehydrate themselves to avoid urinating in their wetsuits. This is very, very unwise, as it increases the risk of decompression illness significantly. In fact, DAN is actively busy with a "More water less Bubbles" campaign to try to offset this tendency! We offer our apologies to pools and wetsuits in advance! Check it out on: http://www.dansa.org/more-water-less-bubbles.htm. Safe Diving! DAN Medical Team