Every day we lose our hair. It is normal to lose a day about 100 hairs, which are replaced by new hair. However, excessive hair loss, when hair are not replaced, leads to baldness or alopecia.
Causes of hair loss (alopecia)
Many systemic diseases can cause hair loss. Any long-term weakening of the organism (eg, due to typhoid fever, viral infections, malaria, operations, accidents and even genera) can trigger hair loss. Hair loss may also be caused by mental tension and stress. Intensive hair loss begins around 3 – 4 months after the disease and lasts for 3-4 weeks. However, most of the lost hair regrowth within 3 months. Nutritional deficiencies, the radical weight loss and anorexia in the nervous system also provokes baldness. A common cause of hair loss in women is anemia. Hormonal disturbances, especially thyroid disease and ovarian cancer, also cause hair loss. A trigger of alopecia may also be some drugs, particularly the contraceptives pills.
Hair Loss in Women
In women, hair loss can begin on the basis of hormonal imbalance. Female body contains a small amount of male hormone androgen, which is responsible for baldness in men. If the men in your family are prone to baldness, it is possible that your hair is sensitive even to the most insignificant amounts of the hormone androgen. However, the pattern of hair loss and baldness in women is fundamentally different from men. As a rule, women have hair fall out over the entire surface of the head, so hair loss less noticeable. With such a scheme of hair loss in women is often linked acne and hirsutism (excessive body hair).
Alopecia areata is a third type of hair loss. Little thin at first appear on the head, but gradually also apply to eyebrows and eyelashes. In men, hair loss also captures the chin. Temples appear suddenly, but usually preceded by very strong stress. Fortunately, in most cases, this problem is solved by itself, without outside interference – in a few months hair begins to grow as quickly as it fell. This type of hair loss is most common among men and is sometimes motivated by violation of skin pigmentation, and diabetes.
Alopecia may also cause some diseases of the scalp. Many believe that dandruff can cause hair loss, but it is not. Children’s Alopecia is often caused by fungal infections. In some cases, the cause of hair loss can be bacterial infections.
Physical trauma and alopecia
Finally, physical trauma may also lead to hair loss: baldness of this type are more prone to women than men. Troublesome hairstyles, for example, tightly encased in a tail hair, literally pulling the hair from the root. Usually, hair starts to fall on the crown, but this process stops, if I change my hair. Hair loss can cause permanent scratching brush with stiff nylon bristles and combs with large sharp teeth. Continuous high temperatures could also lead to pain, so be careful with hair dryer.