are the most common cause of hair 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 hair loss. Most common in men, this type of hair thinning can begin as early as puberty. Hormonal changes and imbalances can also cause temporary hair loss. This could be due to pregnancy, childbirth, and discontinuation of birth control pills or the onset of menopause.
Also medical conditions
can also cause hair loss, including:
Thyroid problems. The thyroid gland helps regulate hormone levels in your body. If the gland isn't working properly, hair loss may result.
Alopecia Areata. This disease occurs when the body's immune system attacks hair follicles — causing smooth, roundish patches of hair loss. This could be what you are talking about. Small patches on your scalp. I would get further test done to see f this is actaully the casue. Because it causes bald spots on the scalp, especially in the first stages, it is sometimes called spot baldness. Some treatment may be: corticosteroid injections, minoxidil and steroid injections. Need to check with your doctor.
Scalp infections. Infections, suchasringworm, can invade the hair and skin of your scalp, leading to hair loss. Once infections are treated, hair generally grows back.
Other skin disorders. Diseases that can cause scarring, such as lichen planus and some types of lupus, can result in permanent hair loss where the scars occur.
Medications. Hair loss can be caused by drugs used to treat: Cancer, Arthritis, Depression, Heart problems, High blood pressure.
Other causes of hair loss
: Hair loss can also result from a physical or emotional shock. Many people experience a general thinning of hair several months after a physical or emotional shock. Examples include sudden or excessive weight loss, a high fever, or a death in the family.
Hope that helps!