Monday, January 10, 2011

Dandruff

Dandruff

    
* Introduction
    
* Signs and symptoms
    
* Treatment
Dandruff is a very common disease of the scalp, which almost all men experience at some point in life regardless of gender or ethnicity. This affects not only your scalp but also ears, eyebrows, nostrils and inside the chest. Dandruff can affect hairy areas of the body or those with very little hair. Other names of dandruff or seborrheic dermatitis Pityriasis capitis seborea and history.
Represent excessive peeling dead skin on hairy areas. It can be caused by excessive exposure to heat and cold. Excessive scaling may be caused by seborrheic dermatitis in people with oily skin, psoriasis, fungal infections or excoriations associated with head lice infestation. It is normal for skin cells to die and is flaky. A small amount of dandruff is normal and common. However, some people experience an abundance scaling may be accompanied by redness and irritation. Most cases of dandruff can be treated easily with shampoo.
Seborea a common cause of dandruff is excessive in people with oily skin or mixed. Case is necunoascuta seborrhea, although a common fungus that lives on the scalp, Malassezia furfur can play a role. Seboreeia affects the face, chest interscapulara-zone area with multiple sebaceous glands. On the front is red and shows that PTE comedones on oily area located on the wings of the nose, forehead, chin, cheeks median half.
Shampoos use a combination of ingredients to control dandruff. Salicylic acid removes dead skin cells on the scalp and reduce the rate at which they are created. Zinc pyrithione pityospora kill. Only increasing use will remove dandruff shampoo. Regular shampooing with an antifungal agent may reduce recurrence. For dandruff, seborrhea is caused by cortisone cream indicated for the face and scalp lotions twice daily use. Antifungal creams are often effective because they reduce the number of fungi traisc skin. Clotrimazole and miconazole creams contain at concentrations of 1% to 2%. They are applied twice a day. The pathogenesis of dandruff As the epidermal layer is continuously renewed, and cells are pushed off the flaky dead. In most people, these flakes of skin are too small to be visible. However certain conditions increases the rate of cell renewal on the scalp especially. For people with dandruff, skin cells may mature and eliminates time 2-7 days a month compared to healthy individuals. Causes and risk factors for dandruff The exact cause of dandruff is unknown. Included in various combinations of increased sebum production of the skin, increasing the number of fungi of the skin, sweating, exposure to heat or cold, weak immune system, chronic disease, emotional or mental stress.
Risk factors for dandruff include: chronic illnesses, the young and middle age, as people grow old shows no dandruff, though some people can last a lifetime problem, men suffer more frequently because they have dandruff sebum glands, which produce higher and due to hormonal influences, seborrheic skin, diet low in zinc, vitamin B or some types of fat, a hereditary component.
Weakened immune system can cause dandruff Bacteria do not cause dandruff. Dandruff is a fungal infection and not the same pathological entity with tinea capitis. Dandruff is not contagious. Dandruff can be caused or exacerbated by poor hygiene and shampooing rare. The immune system may play a role in dandruff. Although mild dandruff is a condition very common in most people with normal immune systems, severe dandruff is more commonly found in chronic diseases such as Parkinson's and AIDS.
Dandruff seborrheic dermatitis caused by Seborrheic dermatitis is a rash that appears in parts of the body by excessive sebum. Areas affected include the scalp, ears, face, chest and skin folds such as groin, the area under the breast, armpit. Seborrhea cause is unknown although it is considered to play a fungus that lives on the skin-Malassezia furfur.
A common manifestation of seborrhea is dandruff, which affects the head. On the front it manifests as red spots, inflamed, oily-looking, hard on the wings of the nose, forehead, chin, cheeks and behind the ears. Scalp Seborrhea not cause permanent hair loss. Often it is not very itchy. Seborrhea can also occur in childhood, and you immediately after birth a few months. It can affect the scalp or the body to produce red spots. Adults of all ages can develop especially seborrhea scalp and face. A revolutionary theory of dandruff Hypothesis aquatic primates that shows the dandruff flakes that form the basis of the loss angle to meet driven decrease water resistance by covering the hair. Malassezia fungus is also associated with dandruff secrete substances that are associated with dandruff, which protects against ultraviolet radiation and works as a sunscreen. Dandruff by contact dermatitis and psoriasis Contact dermatitis or sensitivity to hair care products or fixatives can cause scalp erythematous, pruritic and that descuameaza. Shampooing too often or use of many products can irritate the scalp hairstyle forcing dandruff. Psoriasis is a skin condition that causes the accumulation of dead skin cells that form white flaps. Appears frequently in the knees, trunk, but can also affect the scalp.

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