Why does spicy food burn your butt but not your urethra?

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Even if you eat like a spicy soup?

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38 Answers

Anonymous 0 Comments

If you manage to get something spicy up there, it would definitely burn.

But, as to why it doesn’t generally… Urine is water and waste products that your kidneys filter out of your blood. The irritating chemicals in spicy foods never made it into your blood, so never make it into your urine. Instead, they stay in your gastro-intestinal tract until they’re pooped out.

Anonymous 0 Comments

Liquids don’t go right from your mouth to your bladder – the kidneys filter out water and certain waste products from your blood. And the chemical that makes food spicy, capsaicin, is actually not soluble in water – it’s hydrophobic, and dissolves in oils instead. Your kidneys try to handle only the water-soluble waste products, such as urea, which is our main way of getting rid of excess nitrogen compounds in the body.

So capsaicin doesn’t leave your body through pee, because only water-soluble waste products get sent that way. Some of it is broken down and digested by your body, and turned into other chemicals. But some of it (especially if you’re eating really spicy foods, which also irritate and speed up the digestive tract) will pass through undigested, which can burn on the way out.

Anonymous 0 Comments

Your urethra is connected to your bladder which is filled by the kidneys. It isn’t directly connected to the digestive system. Poop is the undigested bits and comes directly from what you eat.

The reason you have to pee more if you drink a lot of water is your kidneys will try to balance out the salinity levels in your blood which becomes diluted after your digestive system absorbs the water.

Anonymous 0 Comments

Because your poop has the capsaicin being excreted while your urine doesn’t have that molecule in it because it was filtered out/left in your poop.

Anonymous 0 Comments

Urine comes from kidneys filtering water out of your blood. There’s no capsaicin in your blood. There’s plenty of it in your gut after eating spicy food

Anonymous 0 Comments

Just me who’s eaten food so spicy that your piss tingles for the next few hours?

I love a good bit of heat and it’s only happened this one time when the dish was melt your face off spicy but yeah pissing definitely had a tingle for a while

Anonymous 0 Comments

I eat a lot of spicy food. So it always burns when I pee. Even if it’s been a while I always have a burning sensation when I pee, but what are you going to do I really love my hot sauce.

Anonymous 0 Comments

You ever tried the Paque(?) one chip challenge? I promise you, your urethra burns after that.

Anonymous 0 Comments

You poop out what’s left of what you eat. Your butthole and your mouth are part of one big tube with a lot of twists and turns in it where food has nutrients sucked out of it and what’s left is turned into poop.

Your pee doesn’t come from this system. It comes from your blood. Your kidneys filter your blood, and the water your kidneys pull out of your blood gets peed out of you.

So your butthole burns because the spicy chemicals that came in have to come out. They don’t get in your blood so when you pee later, you don’t have spicy pee.

Anonymous 0 Comments

Finally my username can back up a statement. It is 100% possible to have burning pee from spicy food. But you have to climb the Scoville ladder up more than Sriracha…