shorts, short skirt
The girl puts on the summer cool suit
reveals the legs that hide a winter
is the most beautiful scenery on the street
but , The fact is not like this
一到夏
Normal girls’ legs are covered with
mosquito bags, scratches, sandals prints
Of course the most embarrassing
and knees On bruise
Good leg
It is not good to see the scar
There are always some people with unclean thinking
vote Came with a malicious look...
even bluntly
is caused by some unspeakable exercise
is actually not what they thought. !
in daily life, bumping
is also very easy to make the knee produce bruise !
Why are girls prone to bruises on their knees?
bruise , also known as "ecchymosis"
under our skin
There are many Capillary blood vessels
They are very fragile
As long as there is an external blow
can make them rupture and bleed
(capillary rupture, blood cells exposed)
platelets and coagulation factors
that act as "suture" at this time will quickly repair
but in a short time The blood platelets and coagulation factors can't react to
The blood in the capillaries is easy to penetrate into the subcutaneous
causing bruises
contrast boys
girls吹弹可破's skin
is more prone to bruising
and estrogen the existence of
will make vascular expansion
to a certain extent hinder vascular repair
make it easier for girls to have bruises after injury
and some little fairies
born with an enviable 冷白皮
形状更是自带 "Blush"
Once bruises appear, it becomes more obvious
In fact,
breds will also appear on boy 身
It’s just that they have fewer shorts
haven’t been seen
So on the street I saw a girl with bruises on her knee
Don’t stare at it.
Don’t talk too loudly
or you will get a white eye.
Bruise is not actually blue.d9ed#
Those who sleep have
or don’t know how to get the bruise
in the folks are called "鬼打青"
but it is actually silted青不全 is cyan
It may be red, purple
or it may be colorful
Normal bruise development is divided into 5 stages
The color and symptoms of each stage are different
Most bruises can be ignored without paying attention to it. Automatic recovery .
First stage: Red
A few minutes after being impacted, the affected area usually shows 红结血, which means that fresh blood flows from your damaged blood vessel The tissue looks red because there is 血红素 in the blood.
Second stage: Cyan
A few hours later, because oxygen in the blood has been lost, the affected area will show 黑青色, if you receive The impact is relatively violent , it is possible that skips the red blood congestion stage, directly presents cyan .
third stage: purple
usually three or four days after injury , cyan will change to purple , and even black will appear. Because at this stage your blood is rapidly going to the affected area to make red blood cells .
Fourth stage: Green
In a few days, the red blood cells will rupture to produce hemoglobin, the body is gradually recovering, it will turn hemoglobin into into a new substance , The affected area will also show a new color.
The fifth stage: yellow
when the affected area changes to yellow , it means that the hemoglobin produced in the previous stage has been decomposed by , making it for the skin to see Get up yellowish bilirubin . At this time, the body still needs to do and finally clean on the cells exposed in the blood vessels. When the cleaning is done, the congestion will disappear!
So in the entire recovery process, we will see such changes in bruises:
How to quickly eliminate bruises
Many people may have heard of "Activating blood and removing blood stasis ", and rubbing it habitually when bruising occurs.
is usually . It is not recommended to knead by hand. When you are not sure of the symptoms, kneading the affected area may increase the local clinical symptoms . ice compress or hot compress is recommended.
冰压
When you have just been bruised and does not have skin trauma , you can pass 冰涂来 to shrink capillaries to prevent 皮下血 Causes bruises and strangles the bruises at The first stage . At this time, if conditions permit, you can use towel to wrap the ice cubes, apply to the affected area , Keep the temperature around 15℃.
Hot compress
If it is too late to treat the bruises, After 24 hours , it is best to use 湿热压 to relieve the affected area Of congestion. Use a 37-42℃ hot towel to apply several times a day, each time does not exceed 20 minutes . At the same time, note that the temperature of hot compress should not be too high to avoid skin burns.
In addition to accidental bumps, there are the following 4 kinds of situations , it is better to consider going to the hospital to see a doctor:
√ in the short term more body Bruises in all parts and gradually expanded , faded slowly.
√ Since childhood, has been prone to large bruises after minor injuries , subcutaneous bleeding , and family members also have the same situation.
√ When the bruise appears, it is accompanied by: fever, skin itching, joint pain, hematuria, abdominal pain, and black stool.
√ Long-term is taking certain drugs to prevent thrombosis (such as warfarin, aspirin, clopidogrel, etc.), these drugs have a certain risk of bleeding and are more likely to cause bruises ).
There are also many diseases , which can also cause bruises: such as purpura, platelet abnormalities, kidney disease, hemophilia, leukemia , etc.
Believe that if you see this, you will also understand that there is really no "unspeakable" secret when there is bruise on the girl's knee.
Those who always think of "unspeakable" sports are really unnecessary.
As one of the most common human traumas-bruises, if it appears on the young lady, instead of thinking about it, it is better to offer a towel for warmth and care.
References:
[1]Baidupedia-Brush
[2]Why does the color of bruise change[J];家科技;2009-09
Editor: Xinwen
today's topic
Which part of your body has bruises now? (The family doctor accidentally hit the corner of the table yesterday...)
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