Hair condition results in hair pulling?

Alopecia areata: is an autoimmune condition that causes hair loss on the scalp, face, and sometimes other parts of the body. Hair pulling typically occurs in an attempt to remove hairs that are perceived as abnormal or unwanted.

Trichotillomania: is a mental illness that involves an irresistible urge to pull out hairs from the scalp, eyebrows, eyelashes, or other parts of the body that cause a person feel temporary relief when they pull their hair.