Obviously I know you get a bruise when there is a trauma to the skin and that it is blood that we can see. But why does this happen and how?
2006-09-11 01:19:11 · 12 answers · asked by Yasmin H 3 in Health ➔ Other - Health
Your tissues are supplied blood through capillaries, which are small branches off of your larger veins and arteries. When there is trauma the capillaries break and the blood flow leaks into your fat tissue and a bruise or eccymosis is what you see. Depending on how fast your body reabsorbs the lost blood is how long it will last. Size of the area and force of the trauma are factors that can slow it down or speed it up. Also each persons different and has different bleeding times and amt. of fat tissue.
2006-09-11 01:28:38 · answer #1 · answered by debra_har 4 · 1⤊ 0⤋
When enough force is used (depending on how are persons skin is) a trauma happens to the skin thus the appearance of a bruise. A bruise is a hematoma (blood that appears under the skin) that is caused from any sort of blunt force trauma. The hematoma is the pooling of blood in that particular spot and can range in color depending on the severity of said bruise. The healing times depends on the severity. To help the bruising heal a bit faster I have used and recommended ice packs applied to the bruise for short periods of time to help shrink the broken blood (bruising). Good Luck!
2006-09-11 08:40:31 · answer #2 · answered by T-Bird 3 · 0⤊ 1⤋
you knock your hand against the desk.
the trauma breaks small vessels in your hand.
blood leaks out.
if you are normal your body initiates a coagulation cascade, which produces a clot to stop the vessel from leaking any more blood.
the blood already in the interstices of the cells also clots and begins to deteriorate in a predictable way, meaning that someone familiar with it can look at your bruise and know how long ago you incurred it.
eventually the degraded interstitial blood is resorbed by the tissue and all is well.
(if you have a coagulopathy - a clotting disorder - it is a totally different story - you get a transfusion that puts a stop to the bleed. moreover, the interstitial blood does not clot and keeps sinking as low as gravity will take it. sometimes, if there is not much blood, the bruise can vanish fairly fast.)
2006-09-11 20:36:29 · answer #3 · answered by kerangoumar 6 · 0⤊ 1⤋
Trauma to the skin can break the small capillaries in the area and cause subcutaneous bleeding. It takes approximately five days to a week (longer depending on how healthy the skin is) for a small bruise to heal.
2006-09-11 08:21:26 · answer #4 · answered by Blue Jean 6 · 0⤊ 1⤋
The walls of the smallest blood vessels are cracked or otherwise opened, and the blood they are carrying seeps into the surrounding tissues. The discoloration of a bruise comes from this. As our body heals, and the blood gets taken away in the usual cleansing process, the bruise fades.
2006-09-11 08:22:10 · answer #5 · answered by Anonymous · 1⤊ 1⤋
A bruise is caused by bleeding under the skin/tissues. Slowly the blood gets reabsorbed by the body and the bruise disappears
2006-09-11 08:22:55 · answer #6 · answered by paddymac 3 · 0⤊ 1⤋
When you obtain a knock or trauma, very small capillaries rupture in the area and blood pools underneath the skin in the area. Eventually the blood clots and it takes a few days for the body to drain the blood from the affected area.
2006-09-11 08:23:58 · answer #7 · answered by Anonymous · 1⤊ 1⤋
A bruise is broken blood vessels under the skin. The blood clots like in a cut but under the skin so you get the colours.
2006-09-11 08:20:59 · answer #8 · answered by Gone fishin' 7 · 2⤊ 1⤋
The vessels are broken and it bleeds under the skin. Happy Monday
2006-09-11 08:20:37 · answer #9 · answered by Anonymous · 1⤊ 1⤋
when u get knocked, blood rushes to the surface of your skin causing and black/blueish colur....hence a bruise!! when a bruise changes to a yellow colur its becoming back to normal.
2006-09-11 08:21:23 · answer #10 · answered by laceyg2k 2 · 1⤊ 2⤋