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The exact cause of seborrheic dermatitis is unknown. Most experts do know, though, that it is not caused by poor hygiene.

  • Not enough hair brushing - People who do not comb/brush their hair regularly have a slightly higher risk of having dandruff - this is because they are not aiding the shedding of skin that combing/brushing provides.
  • Yeast - People who are sensitive to yeast have a slightly higher risk of having dandruff, so it is logical to assume that yeast may play a part. Yeast-sensitive people who get dandruff find that it gets better during the warmer months and worse during the winter. UVA light from the sun counteracts the yeast. Some say, though, that during winter the skin is drier because of cold air and overheated rooms (exposure to extreme temperatures), making dandruff more likely. So, it is sometimes not that easy to know whether it is yeast or just dry skin.
  • Dry skin - people with dry skin tend to get dandruff more often. Winter cold air, combined with overheated rooms is a common cause of itchy, flaking skin. People with dandruff caused by dry skin tend to have small flakes of dandruff; the flakes are not oily.
  • Seborrheic dermatitis (irritated, oily skin) - People with seborrheic dermatitis are very prone to dandruff. Seborrheic dermatitis affects many areas of the skin, including the backs of the ears, the breastbone, eyebrows, and the sides of the nose, not just the scalp. The patient will have red, greasy skin covered with flaky white or yellow scales.
  • Not enough shampooing - some people say that if you don't shampoo enough there can be a buildup of oil and dead skin cells, causing dandruff. However, many experts doubt this is true.
  • Certain skin conditions - People with psoriasis, eczema and some other skin disorders tend to get dandruff much more frequently than other people.
  • Some illnesses - Adults with Parkinson's disease and some other neurological illnesses are more prone to having dandruff and seborrheic dermatitis. Patients recovering from heart attacks and strokes, and some people with weak immune systems may have dandruff more often than other people.
  • Reaction to hair/skin care products - Some people react to some hair care products with a red, itchy, scaling scalp. Many experts say that shampooing too often may cause dandruff as it can irritate the scalp.
  • Malassezia - Malassezia is a fungus that lives on everybody's scalp. Generally, it will cause no problems at all. However, it can grow out of control. It feeds on the oils our hair follicles secrete. When this happens the scalp can become irritated and produces extra skin cells. These extra skin cells die and fall off; they mix with the oil from the hair and scalp, and turn into what we see as dandruff.
  • Diet - Some experts say that people who do not consume enough foods that contain zinc, B vitamins, and some types of fats are more prone to dandruff.
  • Mental stress - Experts believe there is a link between stress and many skin problems.
  • HIV - A study found that 10.6% of people with HIV have seborrheic dermatitis

This is a skin condition in which the skin becomes inflamed or flaky. Seborrheic dermatitis of the scalp is a severe form of dandruff. When it affects the scalp most people refer to it as dandruff. When babies have it, it is referred to as cradle cap. Seborrheic dermatitis causes larger, greasier flakes than most other types of dandruff. Seborrheic dermatitis affects not only the scalp, but the skin in other parts of the body too.

The exact cause of seborrheic dermatitis is unknown. Most experts do know, though, that it is not caused by poor hygiene.

  • Not enough hair brushing - People who do not comb/brush their hair regularly have a slightly higher risk of having dandruff - this is because they are not aiding the shedding of skin that combing/brushing provides.
  • Yeast - People who are sensitive to yeast have a slightly higher risk of having dandruff, so it is logical to assume that yeast may play a part. Yeast-sensitive people who get dandruff find that it gets better during the warmer months and worse during the winter. UVA light from the sun counteracts the yeast. Some say, though, that during winter the skin is drier because of cold air and overheated rooms (exposure to extreme temperatures), making dandruff more likely. So, it is sometimes not that easy to know whether it is yeast or just dry skin.
  • Dry skin - people with dry skin tend to get dandruff more often. Winter cold air, combined with overheated rooms is a common cause of itchy, flaking skin. People with dandruff caused by dry skin tend to have small flakes of dandruff; the flakes are not oily.
  • Seborrheic dermatitis (irritated, oily skin) - People with seborrheic dermatitis are very prone to dandruff. Seborrheic dermatitis affects many areas of the skin, including the backs of the ears, the breastbone, eyebrows, and the sides of the nose, not just the scalp. The patient will have red, greasy skin covered with flaky white or yellow scales.
  • Not enough shampooing - some people say that if you don't shampoo enough there can be a buildup of oil and dead skin cells, causing dandruff. However, many experts doubt this is true.
  • Certain skin conditions - People with psoriasis, eczema and some other skin disorders tend to get dandruff much more frequently than other people.
  • Some illnesses - Adults with Parkinson's disease and some other neurological illnesses are more prone to having dandruff and seborrheic dermatitis. Patients recovering from heart attacks and strokes, and some people with weak immune systems may have dandruff more often than other people.
  • Reaction to hair/skin care products - Some people react to some hair care products with a red, itchy, scaling scalp. Many experts say that shampooing too often may cause dandruff as it can irritate the scalp.
  • Malassezia - Malassezia is a fungus that lives on everybody's scalp. Generally, it will cause no problems at all. However, it can grow out of control. It feeds on the oils our hair follicles secrete. When this happens the scalp can become irritated and produces extra skin cells. These extra skin cells die and fall off; they mix with the oil from the hair and scalp, and turn into what we see as dandruff.
  • Diet - Some experts say that people who do not consume enough foods that contain zinc, B vitamins, and some types of fats are more prone to dandruff.
  • Mental stress - Experts believe there is a link between stress and many skin problems.
  • HIV - A study found that 10.6% of people with HIV have seborrheic dermatitis
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14y ago
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15y ago

Dandruff caused by the internal and external factors. Internal factors may include; poor hygiene, proper diet, emotional stress. While external factors are infrequent shampooing, excessive use of hair sprays, tight fitting of hats and scarves. Dandruff is seasonal and is more severe during the winter season and mildest during the summer. It also causes some other problems like pimples or acne as these are also casued by the excessive production of sebum. You can try a number of simple home remedies to treat dandruff. these are practical and effective for mild to moderate cases of dandruff for many of us.

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12y ago

Use hair oil regularly to prevent dandruff

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10y ago

Dandruff is flakes of dry scalp. There are a number of causes for dry scalp, and one of the most common reasons for dry scalp and dandruff is cold, dry weather.

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Related questions

Does dandruff helps your hair grow?

Serious dandruff can hurt the scalp and hair follicles, which can bring about diminishing or slow hair development


Does the hair on the head of people with dandruff grow slower than the hair of people without dandruff?

Dandruff (seborrheic dermatitis) is a completely separate condition to hair loss. (Hair grows out from follicles "beneath" the scalp surface.) Cell loss due to dandruff can actually increase the rate of scalp cell growth, but not hair growth.


What is the plural of dandruff?

Dandruff is used as a plural and a singular. The word is used to describe one speck of dandruff or lots of dandruff.


How do you decrease dandruff?

Use dandruff shampoo


Can you use the word dandruff in a sentence?

My dandruff fell on your face.


Will glycerin help with dandruff?

i would use dandruff shampoo


Does it protect from dandruff?

Bonacure brand features a Bonacure "Dandruff Expert Dandruff Control Shampoo" in their line of beauty products.


Can dogs have dandruff?

The puppy will scratch itself more often, just as humans do when they get dandruff. They might bite or scratch at their hair until some starts to fall out, and possibly lead to a bald spot, but other than that, there isn't much else that happens when a puppy gets dandruff. I recommend getting Puppy Dandruff Shampoo to help with the dandruff problem.


Is it normal to hamsters to have dandruff?

Yes, it is normal for any animal to have dandruff.


What is Dandruff's technical term?

Seborrhea dermatitis is another name for dandruff.


Can you comb out dandruff?

Dandruff is a fungal infection so it will always be there. You have to get a medical shampoo. Just combing it out wont work since it's in your scalp. -Unfortunately, dandruff is not just an ordinary problem, dandruff is caused by a fungi called M.furfur, specifically M.globosa. to know more about it you can visit this link, it will all answer your problem about dandruff http://seekyt.com/fungi-causing-dandruff/ It's better reading the article to know how to battle dandruff.


Is dandruff the same thing as dry skin?

Dandruff is dry skin from the scalp of you head. "Unfortunately, dandruff is not just an ordinary problem, dandruff is caused by a fungi called M.furfur, specifically M.globosa. to know more about