Hair loss is classified into two classes. They are scarring hair loss and non-scarring hair loss. The hair loss occurring as a result of damages to hair follicles caused in an accident is known as scarring hair loss. The hair loss occurring because of shrinkage of hair follicles occurring due to aging is known as non scarring hair loss.
Hair consists of a root situated inside the follicle in the skin and a shaft. Hormone imbalance can result in hair loss. Overactive thyroid is an example of hormone imbalance creating hair loss. Under-active thyroid is another example.
Hair loss seen in babies around 3 months after birth is caused by hormone imbalance. During pregnancy, excess hormones are produced resulting in good growth of hair in babies. After birth when the hormone level in the child reaches normal level, the hair starts falling.
Some medications and treatments can also result in hair loss. If any such hair loss occurs because of any medication inform your physician immediately and take corrective steps as advised by him.
Tinea capitis is a kind of hair loss caused because of fungal infection. Anti fungal medications are used for getting relief from hair loss caused by fungal infection.
The continuous or repetitive force applied on the root of the hair can cause hair loss. Tight braids and ponytails are examples of this type of force. This type of hair loss can be controlled by stopping the pulling of the hair. This type of hair loss is referred as Traction alopecia.
The hair loss termed alopecia areata is caused by the patient’s own immune system. The hair loss that begins as small patches may become bigger in some cases. However, in most cases the hair re grows.
Dihydrotestosterone is a byproduct of testosterone. The hair follicles begin to miniaturize because of dihydrotestosterone thereby reducing the life span of hair leading to hair loss. This type of hair loss is known as Androgenetic hair loss.