No part of the skin on the human body contain as much of the sebaceous glands as the scalp.
Excessive secretion of sebum can be caused by external factors such as too much hot water, hot air from a hair dryer, inadequate hygiene and internal factors such as stress, hormonal changes, gastrointestinal diseases, vitamin deficiency.
Seborrhea is a skin disease characterized by overactive sebaceous glands and different composition of fat secretion, which is the result of the accumulation of fatty acids.
Sebaceous glands take care for smooth hair growth with secretion of oily matter called sebum. The result of too much sebum on our scalp and hair are greasy hair.
What causes seborrhea?
The most important is the inherited predisposition of an individual to an increased secretion of sebum. Increased sebum secretion can also be a result of overactive androgen hormones in men, certain dietary habits (greasy food, spicy food, alcohol, coffee …), stress and reduced resistance.
Inflammation of the skin can get even worse because of external factors such as sweating, climatic factors (humidity, heat), decomposed bacteria and their products on the skin, the presence of Pityrosporum ovale … Sebum secretion is usually lower in children and the elderly.
There are two types of seborrhea:
- Oily seborrhea – the secretion of sebum is more fluid. The hair becomes greasy in a few days or even less.
- Dry seborrhea – the secretion of sebum is less fluid. Dandruff gets trapped under the fatty sebum secretion. Fat that accumulates around the hair follicle is preventing the hair from breathing. The result is loss of hair. Such scalp has to be washed more regularly otherwise the skin cannot breathe. When suffering from dry seborrhea hair are usually dry, brittle, or have split ends.
How to treat seborrhea?
The condition takes place in various stages, from very mild to very unpleasant (worse) condition. We are able to alleviate mild forms of the seborrhea with appropriate shampoo.
In most cases the exposure to UVA and UVB rays is very beneficial, because they prevent the reproduction of the yeast Pityrosporum ovale. Unfortunately, special diets do not help.
Strongly expressed skin inflammation must be treated by a dermatologist. We have to emphasize that the treatment is in all cases only symptomatic (unfortunately the disease cannot be completely cured).
The aim of the treatment is to soothe the itching, eliminate inflammation signs and prevent further formation of yellow flakes.
Read more about How to Treat Seborrheic Dermatitis