The hair loss disease can affect anyone, from young children to adolescents and adults. The hair goes through three phases in a cycle of normal growth: Phase Anaga, the catagen phase, and the telogen phase. Normal, healthy hair grows about 1 cm per month and go through the growing season that lasts between two to six years. Shedding hair is a normal part of everyday life, however, some people may be affected by excessive hair loss.
Common Types of HairLoss Diseases
There are many types of diseases hair loss, and these diseases are classified by categories or based on the phase of the cycle of hair growth will take place in.
Androgenic Alopecia is a type of hair loss in which growth or Anaga phase of the cycle of hair becomes shorter and shorter. This type of hair loss disease is inherited and causes hair follicles to produce that is thinner than average. With this type of alopecia, the hair becomes finer and thin until the follicles eventually wither quickly.
Alopecia Areata is a common type of hair loss is characterized by sudden loss of patches of hair. This condition is caused by the attack of the immune system in hair follicles and may get worse when hair follicles enter the telogen phase of the life cycle of hair. Alopecia Areata affects 1 in every 1000 people and may be due to many causes. One of the most common cause of alopecia areata is an imbalance in an individual' s system that, when corrected, may result in the complete regeneration of hair.
Alopecia comes in different types: Alopecia Areata multilocularis, Alopecia Areata beard, Alopecia areata totalis, Alopecia Areata monolocularis, alopecia areata diffuse and Alopecia Areata universal.
Alopecia universal is a rare type of alopecia which is characterized by hair loss throughout the body. This type of hair loss is a variant of Alopecia Areata and differs with the former based on the amount of hair loss.
Telogen effluvium (link to article effluvium) is a type of hair loss that occurs when many strands of hair into the resting or telogen phase, therefore causing detachment and thinning hair. This type of hair loss disease does not affect more than 50% of all hair and can last up to three months. The emergence of Telogen effluvium can be attributed to stress, poor nutrition, medical side effects and changes in hormone levels.
Some types of hair loss are not related to the growth cycle of hair. These are:
Trichotillomania is a condition characterized by compulsive and the incessant plucking and pulling an individual's own hair. This disorder can be treated the children, but adults who suffer from this condition rarely recovers.
Traction Alopecia is a condition characterized by hair loss over the scalp and becomes more evident around the forehead and face. This type of hair loss is caused by the hairstyles that pull the hair too tight.
Tinea capitis is a level of the skin disease caused by fungi and infection is characterized by the presence of bare patches of skin in an individual's scalp. This can affect the skin of the eyebrows, eyelashes and scalp. Also known as ringworm of the scalp, this disease attacks hair and hair follicles and are mostly children under 10 years of age.
The hair loss symptoms
Symptoms of hair loss is usually disease, as well as a thinning hair or hair shedding, ultimately resulting in excessive loss of hair.
The most common hair loss disease, androgenetic alopecia, usually manifests itself through the loss of hair on the front scalp and forehead for men, while women with this condition experience hair thinning throughout the scalp.
Conditions such as alopecia areata tricotilomania and result in patches of hair loss, while hair loss due to certain drugs often leads to the collapse of large clumps of hair.