Hereditary hair loss
Both men and women develop this type of hair loss, which is the most common cause of hair loss worldwide. In men, it’s called male pattern hair loss. Women get female pattern hair loss.
Age
With age, most people notice some hair loss because hair growth slows.
Alopecia areata
Alopecia aerate is a disease that develops when the body’s immune system attacks hair follicles (what holds the hair in place), causing hair loss.
Childbirth, illness, or other stressors
A few months after giving birth, recovering from an illness, or having an operation, you may notice a lot more hairs in your brush or on your pillow. This can also happen after a stressful time in your life, such as a divorce or death of a loved one.