Dandruff can have multiple causes, including:
Dry skin. Simple dry skin - a sort of get in the winter when the air is cold and rooms are overheated - is the most common cause of itchy, scaly dandruff. Flakes of dry skin are generally smaller and less fat of other causes of dandruff, and is likely to be symptoms of dry skin and other body parts such as legs and hands.
Irritated, oily skin (seborrheic dermatitis). This condition, one of the main causes of dandruff, is marked by red, greasy skin covered with white or yellow scales. Seborrheic dermatitis can affect not only your scalp but also other areas rich in sebaceous glands, such as your eyebrows, the sides of the nose and the back of your ears, your breastbone, your groin, and sometimes your armpits.
Not shampooing often enough. If you do not regularly wash your hair, scalp oils and skin cells can accumulate and cause dandruff.
Psoriasis. This skin disorder causes an accumulation of dead cells that form thick silvery scales. Psoriasis commonly occurs on your knees, elbows and trunk, but it can also affect your scalp. It can be difficult to distinguish from seborrheic dermatitis, if only the scalp is involved.
Eczema. If you have eczema anywhere on the body, it can also be on your scalp, which can lead to development of dandruff.
Sensitivity to hair care products (contact dermatitis). At times the sensitivity of certain ingredients in hair products or hair dyes, especially para-phenylenediamine (PPD), can cause the scale of red, itchy scalp. Shampoo too often or using hair products, too many of them can irritate the scalp causing dandruff.
A yeast-like fungus (Malassezia). Malassezia lives on the scalps of most healthy adults without causing problems. But sometimes it grows out of control, feeding on the oils secreted by hair follicles. This can irritate the skin of your scalp and cause skin cells to grow. The extra skin cells die and fall, the clustering of the oil in your hair and scalp, so they appear white and flaky on the hair or clothing. In most cases, the rash is identical or confusingly similar to seborrheic dermatitis.
What are the causes of excessive growth of Malassezia is not known, but there is too much oil on the scalp, the changes in your hormones, stress, illness, neurological disorders such as Parkinson's disease, immune system suppression, no shampoo quite often, and more sensitivity to Malassezia fungi can contribute to dandruff.
Dry skin. Simple dry skin - a sort of get in the winter when the air is cold and rooms are overheated - is the most common cause of itchy, scaly dandruff. Flakes of dry skin are generally smaller and less fat of other causes of dandruff, and is likely to be symptoms of dry skin and other body parts such as legs and hands.
Irritated, oily skin (seborrheic dermatitis). This condition, one of the main causes of dandruff, is marked by red, greasy skin covered with white or yellow scales. Seborrheic dermatitis can affect not only your scalp but also other areas rich in sebaceous glands, such as your eyebrows, the sides of the nose and the back of your ears, your breastbone, your groin, and sometimes your armpits.
Not shampooing often enough. If you do not regularly wash your hair, scalp oils and skin cells can accumulate and cause dandruff.
Psoriasis. This skin disorder causes an accumulation of dead cells that form thick silvery scales. Psoriasis commonly occurs on your knees, elbows and trunk, but it can also affect your scalp. It can be difficult to distinguish from seborrheic dermatitis, if only the scalp is involved.
Eczema. If you have eczema anywhere on the body, it can also be on your scalp, which can lead to development of dandruff.
Sensitivity to hair care products (contact dermatitis). At times the sensitivity of certain ingredients in hair products or hair dyes, especially para-phenylenediamine (PPD), can cause the scale of red, itchy scalp. Shampoo too often or using hair products, too many of them can irritate the scalp causing dandruff.
A yeast-like fungus (Malassezia). Malassezia lives on the scalps of most healthy adults without causing problems. But sometimes it grows out of control, feeding on the oils secreted by hair follicles. This can irritate the skin of your scalp and cause skin cells to grow. The extra skin cells die and fall, the clustering of the oil in your hair and scalp, so they appear white and flaky on the hair or clothing. In most cases, the rash is identical or confusingly similar to seborrheic dermatitis.
What are the causes of excessive growth of Malassezia is not known, but there is too much oil on the scalp, the changes in your hormones, stress, illness, neurological disorders such as Parkinson's disease, immune system suppression, no shampoo quite often, and more sensitivity to Malassezia fungi can contribute to dandruff.
No comments:
Post a Comment