Re: You learn something new every day.
Posted: Fri Oct 28, 2016 11:59 am
That sounds like asking for trouble...Ryall wrote:Fun fact: you can create petechiae on your hand by grabbing tightly around the wrist, and then pumping more blood into the hand (by opening and clenching your fist repeatedly), resulting your hand becoming inflated.Manalee wrote:Day 1: Suddenly increasing facial blood pressure (by holding one's breath, hanging upside down, induced vomiting, or even strangulation) can cause capillaries to burst, leaving tiny red marks called petechiae, particularly on the eyelids. They are harmless and usually disappear after a few days.
Men have an extra appendage with which to experiment using this principle. Try it, it's fun.
Burst capillaries under the skin are fairly harmless if you don't have a blood clotting problem, but I wouldn't say the same of internal haemorrhaging in a limb or appendage.