What Causes Seborrheic Dermatitis on the Scalp?

The head is where the sebaceous glands are distributed. Sebum secretion by the skin sebaceous glands is a normal physiological function. However, if the sebaceous glands are hypersecretory, excessive sebum is excreted, which accumulates on the skin, and chronic skin inflammation occurs at the accumulation.

Seborrheic dermatitis of the head

The head is where the sebaceous glands are distributed. Sebum secretion by the skin sebaceous glands is a normal physiological function. However, if the sebaceous glands are hypersecretory, excessive sebum is excreted, which accumulates on the skin, and chronic skin inflammation occurs at the accumulation.

Scalp seborrheic dermatitis refers to a mild erythematous patch that starts on the scalp and is covered with grayish white bran-like scales with mild itching and rash spreading. Greasy scaly map-like patches can be seen. head

Chronic process, easy to recur, often accompanied by folliculitis,

1. Typical skin lesions are yellow-red spots, patches, or maculopapular rashes, with greasy scales on the surface, with exudate in severe cases; or gray-white pityriasis scales on dry red spots.

2. The rash occurs on the scalp, eyebrows,

It is believed to be related to factors such as genetics, sebum metabolism changes, microbial parasitism, neurological dysfunction, and eating habits. It has been speculated that the occurrence of this disease is due to increased sebum secretion and changes in chemical composition, which caused the normal flora originally existing on the skin to grow and reproduce in large numbers and invade the skin.

The disease is caused by multiple factors. It is related to age and gender. Most cases have a genetic tendency, and increased androgen levels lead to increased sebum secretion. In addition, seborrhea often occurs in neurological diseases such as

This disease is a secondary inflammation that occurs on the basis of sebum overflow. Recently, some people think that the primary infections and secondary allergies caused by the increase in sebum secretion and other chemical components, which caused the growth and reproduction of P. ovale to invade the skin, are related to the innate seborrheic qualities, but the genetic method is unknown. .

In addition, sebum spillage increases the body's susceptibility to bacteria, such as the non-pathogenic Corynebacterium acne bacteria multiplying on the skin, breaking down free fatty acids and causing inflammation. Sebaceous glands are also a factor.

The sebaceous glands of the newborn have obvious activity, and the sebum overflow of the baby, and the sebum overflow decreases with the gradual disappearance of the androgen from the mother. Sebaceous gland activity gradually decreases with age and before puberty, and then begins to increase from 18 to 40 years of age, until the symptoms of old age are reduced, more men than women.

In addition, mental factors, eating habits, tobacco addiction, etc. can stimulate the occurrence of this disease. Coronary heart disease, hypertension, heart failure, and B vitamin deficiencies are more common in patients with AIDS. ^[2]

Daily Seborrheic Dermatitis Care

Wash your hair frequently and keep your skin clean to reduce microbial parasites. People with more oily skin should wash their face with warm water and sulfur soap 2-3 times a day, with little or no cosmetics. Diet should eat less animal fats, carbohydrates and irritating foods, avoid tobacco and alcohol, eat more fresh vegetables and foods rich in vitamin B family. ^[2]

Head seborrheic dermatitis precautions

First, pay attention to regulating your diet in life, eat more vegetables, limit fatty and polysaccharide diets, avoid spicy food, alcohol and other irritating foods, avoid excessive mental stress and local scratching, have a regular life, and maintain enough sleep.

2. Oral medication. Available vitamin B6, B2 or multivitamin B and so on. Antipruritic sedatives such as antihistamines can be used for severe itching, and antibiotics can be used for obvious inflammation or secondary infections.

Third, Ningfuji topical therapy is based on the principles of degreasing, sterilization, anti-inflammatory and antipruritic. It can be used as white fresh skin extract, Sophora flavescens extract, snake bed extract, scutella extract. Made into Phu Fushun cream to relieve symptoms.

Patients with seborrheic dermatitis should eat foods rich in vitamins A, B2, B6, and E: Vitamins A, B2, and B6 can regulate and inhibit fat secretion. Vitamin E can promote skin blood circulation and improve sebaceous gland function.

Foods rich in these vitamins include animal livers, carrots, pumpkins, potatoes, cabbage, sesame oil, and rapeseed oil. It is worth noting that you should eat foods rich in vitamins, especially vitamin A foods, such as pork liver, carrots, egg yolk, etc., to correct abnormal hair follicle sebum keratosis and prevent hair follicles from being blocked.