Medical Questions > Conditions and Diseases > Neurological Disorders Forum

fainting and losing control of bladder

Must Read
How can you tell if a headache is serious, or not? What types of headaches are there? Get started learning the facts about headache here....
Do you know when to seek help for headache symptoms? Learn more about symptoms of the four different types of headaches...and when to go to a doctor here....
Headaches can be caused by various medical conditions. Learn which tests doctors use to diagnose problem headaches...and who you should see to start diagnosis....
what can cause a person to faint and lose control of their bladder
when seeing or doing the following:
1. blood
2. using the bathroom
3. scared
4. excited
please give me some reasons of what might be causing this.
Did you find this post helpful?

User Profile
replied June 24th, 2011
Especially eHealthy

Fainting at the sight of blood (or in other exciting/frightening events) generally comes from an overactive vasovagal response, an evolutionary fear reflex. This response slows down your heart rate and lowers your blood pressure, causing blood to drain to your legs. This means that less oxygen-rich blood is going to your brain, which is what causes people to feel lightheaded, or even pass out.

This survival mechanism is nice if, say, you need to play dead in the presence of a predator, which may be the origin of the response. And if you’re bleeding, the reduced heart rate might help prevent too much blood loss. But in most situations—especially emergencies when you need to be, well, awake—it’s a nuisance.

This reflex is present in all humans. Some are just more sensitive to it than others. You can go through a desensatization process and reduce the effects.

Hope that helps some. Good luck.
Did you find this post helpful?
Quick Reply