Hair loss and hair thinning can be caused by a variety of different conditions. Although many researchers still blame genetics for this condition, there are a number of other factors that can speed up hair loss.

Hair Loss Causes

Androgenetic Alopecia – This is the most common type of hair loss present in both men and women. In this condition there is a hereditary predisposition.

Many researchers have established that this condition is due to a hyper activity of the “5-alpha reductase” enzyme that contributes to shortening the growth phase of the hair and its miniaturization in the growth phase. This is called the DTH theory (DHT stands for dihydrotestosterone).

Alopecia Areata – In this type of hair loss, the hair usually falls out. The results are totally smooth and small round patches about the size of a coin. This condition can affect children or adults of any age and its cause is unknown.

Alopecia Areata Childbirth – Within two to three months after childbirth, some women will notice some hair loss. This condition in most cases can last one to six months.

High Fever, Severe Infection or Flu – Illnesses like fever, infection or flu can cause hair loss that usually corrects itself over time.

Thyroid Disease – Hair loss can be caused by both an over-active thyroid and an under-active thyroid. This condition can be reversed with proper treatment.

Inadequate Protein Intake in a Diet – Hair loss can also happen some months after a rigorous diet that is low in protein. This condition can be reversed or prevented by eating the adequate amount of protein during a diet.

Stress or Exhaustion – Both of these conditions can also cause weakening of the hair follicles and hair loss.

Medications – Some prescription drugs may cause temporary hair loss. High doses of vitamin A may also cause hair loss.

Cancer Treatments – Some cancer treatments will cause hair loss by stopping the division of hair cells. The hair will grow again after the cancer treatment ends.

Birth Control Pills – Some women present hair loss while taking birth control. This condition may continue usually for six months and then it stops.

Low Iron – Hair loss can also be caused by iron deficiency. This condition can be detected by laboratory exams and can be corrected by taking iron supplements or pills.

Major Surgery – Some people after a major operation may notice increased hair loss. This condition usually reverses itself within a few months.

Chronic Illness – People who suffer from a severe chronic illness may present hair loss.

Fungus Infection (Ringworm) of the Scalp – This condition is caused by a fungus infection. This contagious disease is most common in children and can be cured with oral medication.

Trichotillomania or Pulling of the Hair – Children or adults will twist, pull or play with their hair. This condition may also extend to brows or lashes.