Alopecia is simply a medical term that describes hair loss, or baldness, as well as the hair loss disease alopecia areata, which affects both males and females, young or old. Androgenic alopecia or pattern baldness is the most common condition that mostly affects adult males of all ages.
The Types of Alopecia
There are several types of Hair Loss or Baldness (alopecia) in men and women which are listed below:
Pattern baldness (Androgenetic Alopecia): Accounts for over 90% of all pattern hair loss in both men and women. It is the progressive and gradual loss of hair in certain areas of the scalp. Affects men from their early twenties and in some cases earlier, but generally the 40′s are the worst period. After menopause women can also be affected. The hair follicles in certain areas are thought to be affected by the hormone Dihydrotestosterone (DHT). These areas are commonly in the front and the top of the scalp. The rest of the hair follicles on the sides do not seem to be affected at all. Pattern baldness is hereditary, it can be inherited from either parent and is due to atrophy (a decrease in the size of an organ caused by disease or disuse) of hair follicles.
Patchy baldness (alopecia areata): This condition presents itself as patchy areas of the scalp clearly defined. It can happen to both sexes. Large chunks can come off while brushing. The cause is believed to be nervous stress and mostly following infectious diseases such as pneumonia, influenza, typhoid. It can also follow operations and childbirth. Hair will, in most cases grow back, usually white at first, regaining its natural colour gradually. Cortisone injections or pills can help to treat the condition, although new patches continue to occur. Minoxidil (5% Solution) is also used for treatment with some degree of success. Many creams or ointments are available, but these should be looked at with a lot of scepticism.