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What causes dandruff?
11 Mar 2022
What causes dandruff? image

Dandruff is a common scalp ailment that causes flaking of the skin. It is neither infectious nor dangerous. It can, however, be frustrating and difficult to treat.

Dandruff is caused by little particles of dry skin being shed from the scalp. These flakes may be found in your hair or on your shoulders. Dandruff might also irritate your scalp.

A gentle daily wash can be used to treat mild dandruff. If that doesn’t work, try using a medicated shampoo. Symptoms may reappear at a later date.

Seborrheic dermatitis, also known as dandruff, is a mild form of seborrheic dermatitis.

When you’re stressed or sick, dandruff might worsen. Winters that are cold and dry can also cause or aggravate dandruff.


Some known symptoms of dandruff are :

  • Skin flakes on your hair, skin, moustache and brows
  • Itch on head scalp
  • Infants with cradle caps have a scaly, crusty scalp.

What is the reason for dandruff?

Some reasons that you may be facing the condition of dandruff can be due to,

Dry skin

One of the most common causes of dandruff is dry skin. And, sadly, if this is the cause of your dandruff, it may worsen throughout the winter months.

Moisturization is the best way to fight against those unwanted flakes on your skin. Many shampoos (both medicated and non-medicated) can replenish moisture in your scalp and reduce or even eliminate dandruff.


People are allergic to a wide range of items, from grass to peanuts. It could be due to sensitivity if you experience any type of scalp discomfort, such as itchy or soreness, after using a certain product.

To find the culprit use the process of elimination approach and find the true reason behind your allergy.

Medical conditions

Your underlying medical conditions can cause a condition of dandruff. Seborrheic dermatitis is a chronic skin condition that affects not only the scalp but also other parts of the body with oil glands. Dandruff and redness of the scalp are symptoms of this illness.

Shampoo usage

It’s possible that you’re not using enough shampoo, or that the shampoo you’re using isn’t strong enough to break down the oil barrier that causes dandruff. While it’s possible that simply shampooing more frequently may suffice, you may need to go a step further. Using a pharmaceutical over-the-counter shampoo a few times a week would help to keep the buildup at bay.

Yeast overgrowth 

Malassezia is a fungus that resides on everyone’s scalp and skin. Some people have a sensitivity for it, which might lead to dandruff. Other skin disorders aggravated by Malassezia include psoriasis and other kinds of dermatitis and seborrheic dermatitis.

How do I stop dandruff?

Maintain a balanced diet. Dandruff can be prevented by eating a diet rich in zinc, B vitamins, and certain types of lipids. Create a hair and scalp care regimen that works for you. Shampooing your hair every day can help prevent dandruff if you have an oily scalp.

Does shaving your head cure dandruff?

Shaving your head may help to prevent dandruff, but there is a potential that it will stick to your scalp or hair. When you shave your head or experience hair loss, the dead skin on your scalp begins to shed on its own, keeping your hair free of dandruff.

Does long hair cause dandruff?

Because everything happens on your scalp, the length of your hair has no bearing on whether or whether you get dandruff. (However, balding regions of the scalp may have less dandruff because the atmosphere is less conducive to the Malassezia bacteria, which thrive in warm, humid environments.)

When to see a doctor 

The majority of people with dandruff don’t need to see a doctor. If your problem doesn’t improve after using dandruff shampoo regularly, see your primary care doctor or seek help from a dermatologist.

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