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Questions tagged [urinary-system]

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why feel urge to urinate when riding a pirate ship [closed]

A pirate ship is an amusement ride that throw people up and down. Why the sense of acute acceleration, hypogravity and hypergravity make me feel an urge to urinate, even if my bladder is empty?
1 vote
0 answers

What is considered a high but safe amount of D-mannose before causing kidney damage? [closed]

I'm currently taking a product called: Vibrant Health - U.T. Vibrance, Crisis Intervention Formula, which suggests to take 5 grams of this product 4 times a day, so basically 20 grams a day for about ...
0 votes
1 answer

Muscarinic receptors in bladder

ACh contracts the wall of the bladder(by M3 receptor). How does it relax the sphincter?
1 vote
1 answer

Can holding pee cause kidney damage?

Suppose a person, drank 400ml-800ml of water, and he pees after 6 hours, when he wakes after sleep in the night. Keeping that context I'm concerned, if this could cause kidneys to damage (or fail!). ...
10 votes
1 answer

What is the physiological process that would cause one to void more than once in the morning?

I have observed that drinking a full glass of water prior to sleeping leads to urination in the morning, as would be expected. However, I have also observed that some people urinate more than once in ...
3 votes
1 answer

How does stress cause the frequent urge to urinate?

How does stress cause the frequent urge to urinate? Does it involve the kidneys increasing urine production? Is there any potential benefit for the body?
19 votes
2 answers

Do you bleed to death after your penis is cut off?

I wonder If a person without knowledge and tools cuts off somebody's penis and then doesn't call an ambulance immediately, is there a chance a person may not bleed to death within a short time? I ...
6 votes
2 answers

Urinating while excreting

Can passing faeces and urinating occur at the same moment and if not, why? Now I don't have any medical knowledge really or background but the only conclusion I can come to is that faeces press ...
17 votes
2 answers

Why does my antibiotic make my urine yellow?

When I was given antibiotics for fever by my doctor, I noticed that my urine is unusually yellow. Why is that?
5 votes
0 answers

Is this normal urinating?

Is it normal for men to have to push, retrieve, push, retrieve at the end of urinating to get the last of it out? It's happens like 6 times or more, and it shoots out lines of pee, and I'm wondering ...
6 votes
1 answer

Is dry urine sterile?

I'm male, and I've noticed that when I urinate, there's sometimes a small amount of splatter which hits my legs and pants. I try to avoid this, but it seems impossible to avoid entirely. Once dry, is ...