Most people experience hair loss at least between 50 and 100 hair strands per day. Although people accept the fact that they experience hair loss of that amount, the thinning process goes unnoticeable because new hair grows out of it at the ame time. Hair loss happens when the hair cycle’s growth and its shedding is interrupted or at the time when the hair follicle gets destroyed and is replaced with the scar tissue. There is no exact cause pointing to hair loss nor it can be understood as it is, but it is generally related to medical conditions, medications, hormonal changes or heredity.
The most common, heredity, is a condition that is either a female-pattern baldness or male-pattern baldness. It normally happens in a gradual way and comes in predictable patterns. For men the most common pattern is a baldness on top of the head that takes shape of a horshoe, while women only has thinning at the top, not complete baldness at all. The pattern of baldness on men usually starts as early as their puberty stage. This kind of hair loss may include both miniaturization or hair thinning.
With medical conditions and hormonal changes, it can be due to various conditions. The imbalances of hormones and its changes can also cause hair loss, but it is a temporary case. What involves with hormonal imbalances can be childbirth, pregnancy or at the start of menopause. The changes of the hormonal levels can also be due to the thyroid gland, so problems with the thyroid can also contribute to hair loss. There is also the nonscarrring kind of hair loss called the alopecia areata. It happens when the immune system of the body attacks the hair follicles, which results to the sudden hair loss and leaving the scalp with a smooth and round-shaped bald patches. Infections on the skin, like ringworm, can seize the skin and hair of the scalp which eventually leads to the scaly patches of the skin and hair loss. But if the infections of the skin are treated, hair will naturally grow back. Other skin ailments can also cause hair loss, such as alopecia can cause permanent hair loss at the scarred sections of the skin. Some of these conditions include sarcoidosis, other kinds of lupus and lichen planus. Lastly is the hair pulling disorder that some people possess. Although this kind of situation is like a forced habit upon the person himself or herself, it is still considered as hair loss. This condition is also referred to as trichotillomania, which gives people that irresistable feeling of pulling out their hair. It does not only happen on the hair of the head but also other areas that have hair growing out of them.
Radiation therapy is a common cause of hair loss which is always depicted in movies or TV shows, which everyone is familiar of. Another is a trigger of an event, which is resulted from an emotional or physical shock. Another is by excessive hair treatments and hair styling.