ALYSSA Milano has shown the horrifying amount of hair she has lost as a result of having coronavirus.
The actress shared a video on Twitter of herself brushing her hair after a shower and showed how several strands of hair came out.
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The 47-year-old said: "Hey everybody, I just wanted to show you the amount of hair that is coming out of my head as a result of COVID.
"This is a detangler brush, my favorite detangler brush. As you can see in there is no hair in there right now."
A recent survey has revealed that one in four people who have overcome the virus have since experienced hair loss.
Alyssa began brushing her wet hair as she kept pulling clumps of locks from her brush.
She concluded the video by lifting the entire bunch of long hairs and saying: "One brushing, this is my hair loss from COVID-19. Wear a damn mask!"
The actress captioned the shocking video to her 3.7million followers writing: "Thought I’d show you what #Covid19 does to your hair.
"Please take this seriously. #WearADamnMask #LongHauler."
Alyssa recently revealed on Saturday that she had tested positive for coronavirus antibodies.
She had previous tested negative for the killer bug three times after coming down with symptoms in April.
She captioned the image: "I was acutely sick w/ Covid19 in April. I still have many symptoms.
"I am what they call a 'long hauler'. Last night, I had real heaviness in my chest."
"Long haulers" have reported battling with the lingering problems for months despite overcoming Covid-19.
The most common symptom is crippling fatigue, but others have experienced aching muscles and difficulty concentrating.
Hair loss among 'long haulers'
Studies have reported a link between coronavirus and hair loss among survivors.
Experts say most virus patients are suffering telogen effluvium (TE).
Dr. Sarah Hogan, a clinical instructor at UCLA, says the link between hair loss and the virus makes sense as patients experience this after suffering from the stressful illness.
Specialists at the Belgravia Centre in London say they’ve noticed an increased in TE cases in patients who've battled Covid-19.
Dr. Natalie Lambert from the Indiana University School of Medicine conducted a survey along with Survivor Corps among virus 'long haulers' and found over 400 patients out of 1,500 experienced hair loss.
An online survey was conducted of 1,500 people who have survived Covid.
The results from the Survivor Corp Facebook group found that 27 per cent of people had experienced some form of hair loss.
This could be hair loss of the scalp, or on other parts of the body such as the eyebrows.
One survivor, who battled the virus in March said she feared she would go bald and be forced to wear a wig after more than half of her hair fell out.
Grace Dudley from Essex said she woke up to clumps of hair on her pillow, while others online also commented that they too had experienced extreme hair loss.
The condition know as telogen effluvium (TE), is when a person temporarily experiences hair loss.
Doctors have said that this usually occurs if a patient has recently experienced a stressful situation.
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TE occurs when the number of the follices in the scalp changes.
It usually affects the top of the scalp and in most cases the hair line will not recede if someone experiences TE.
Severe cases of TE will spread to the eyebrows and other parts of the body.
What is telogen effluvium?
Telogen effluvium is a form of temporary hair loss which usually occurs at the top of the scalp - and is caused by factors like, shock, stress and poor diet
As people who recover from the coronavirus start to experience hair loss, here's what you should look out for if you think you have telogen effluvium.
The symptoms can be subtle in some people and you might not even notice that there is anything wrong with your hair.