How do nosebleeds develop? (without cuts or blunt force)
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Blood vessels pass through the thin layer of tissue between your nasal cartilage and inside of your nose. The tissue is so thin that when it loses moisture it can become brittle and prone to cracks. If the tissue cracks across a blood vessel, you get a noseebleed.
If your blood pressure drops very rapidly (for example, from standing up quickly after sitting down for a long time), the thin skin (tissue) in your nose can break (especially if the air is dry), causing some minor bleeding.
In my experiance if my nose gets dry because due to environmental factors my nose will start bleeding started using a moisturising nose spray in summer to prevent it and it seams to work
Another question: why does anime show nosebleeds when guys are horny/pervy?
in addition to what others have said you can also have a blood disorder, i have a mild case of Von Willebrands Disease which I inherited from my father, and i had constant nosebleeds all through childhood.
Has anyone ever actually gotten a nosebleed from sitting up high in a stadium? I know they refer to the top seats as “nosebleeds” but I’m not sure I’ve ever heard of someone getting one there.
I get nosebleeds when the inside of my nose gets too dry. I have one particular blood vessel in my right nostril that is the culprit and the only option, other than using a nose spray, is to have it cauterized.
The blood vessels in your nose are the thinnest blood vessels that are exposed to the environment. Your tissues dry out and become less flexible when it’s dry out, and this can cause them to crack.
Also, if you have high blood pressure (particularly because of hypervolemia, or too much blood in not enough pipes), these blood vessels become the weakest link and can rupture on a particularly strong heart beat. When they do, you lose some blood, your blood pressure lowers a little to safer levels. In this way, they kind of function like little relief valves.
I doubt this is really any kind of evolutionary design, but it is known that some people with high blood pressure suffer from frequent nosebleeds, and any bleeding would alleviate some of that pressure. This is good because other more serious effects such as strokes could occur from high blood pressure if your nose didn’t relieve the pressure first.
Along with the other reasons posted I have heard that nose bleeds can be a symptom of high blood pressure
I had serious nosebleeds from the effects of chemo on me – like Its-a-throw-away said, dry mucus membranes split and crack – I had dry eye, dry sinuses, dry mouth, dry vaginal tissues and most important, the lining of my intestines mostly died, leaving me with a 35 foot road rash that wouldn’t scab up inside – I was shedding interstitial fluid and blood fast enough I ended up in hospital just barely before my organs were going to start shutting down – 2 IVs running full bore 24 hours a day, no chemo drugs and radiation for a week and I healed up enough to finish the last 9 days of chemo and radiation [I was at the stage where I was getting oral chemo and radiation every day for a total of 26 days – something like 54 gray dosing. [it was more than I got on any random multimonth contract working repairing nuke plants professionally]
I still get random nosebleeds if I don’t get enough water, I tend to drink about 3 liters a day now automatically, and I pretty much constantly use nasal saline spray and neutral saline eyedrops. I do have some goop for dry mouth but it is artificially flavored and sweetened and tastes like crap which is why I drink so much water.
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