Most people normally shed 50 to 100 hairs a day. But with about 100,000 hairs in the head, this amount of locks loss shouldn't cause noticeable loss of the head locks. As people age, locks tends to gradually thin. Other causes of locks loss include hormonal factors, health conditions and medications.
The most common cause of locks loss is a hereditary condition called male-pattern baldness or female-pattern baldness. In genetically susceptible people, certain sex hormones trigger a particular pattern of permanent locks loss. Most common in men, this type of locks reduction can begin as early as puberty.
Hormonal changes and imbalances can also cause temporary locks loss. This could be due to pregnancy, childbirth, discontinuation of birth control pills or the onset of menopause.
A variety of health conditions can cause locks loss, including:
Thyroid problems. The thyroid helps regulate hormone levels in your body. If the gland isn't working properly, locks loss may result.
Alopecia areata. This disease occurs when the body's immune system attacks locks roots — causing smooth, roundish patches of locks loss.
Scalp infections. Infections, such as ringworm, can invade the skin and locks of your head, leading to locks loss. Once infections are treated, locks generally grows back.
Other skin disorders. Diseases that can cause scarring, such as lichen planus and some types of lupus, can result in permanent locks loss where the scars occur.
Hair reduction can be caused by drugs used to treat:
High blood pressure
Other causes of locks loss
Hair reduction can also result from:
A physical or emotional shock. Many people experience a general loss of locks several months after a physical or emotional shock. Examples include sudden or excessive losing weight, a high fever, or a death in the family.
Hair-pulling disorder. This mental illness causes people to have an irresistible urge to pull out their locks, whether it's from the head, their eyebrows or other areas of the body. Hair pulling from the head often leaves patchy bald spots on the head.
Certain hairstyles. Traction locks loss can occur if the locks is pulled too tightly into hairstyles such as pigtails or cornrows.