Thinning hair may have a variety of causes.
Congenital genetic causes, and the patient’s parents may have a similar condition.
Abnormalities in hormone levels in the body due to endocrine disorders.
Infectious diseases of the scalp, such as ringworm, scalp folliculitis, etc.
Permanent baldness due to scar formation after trauma to the scalp.
Hair loss due to disorders of the body’s immune function, where the immune cells in the body, which originally play a protective role, attack the normal hair follicles.
Bad lifestyle: staying up late, excessive perming, dyeing, hair blowing and exposure to the sun, etc.