The symptoms of alopecia are very noticeable, and can present themselves in many ways, such as bald circles, accompanied by crusting and inflammation around the area, symmetrical alopecia,
patchy alopecia, or hair loss that itches and hair loss that does not itch.
I know this firsthand: 37 years ago, I was diagnosed with
alopecia areata, an autoimmune disease causing
patchy or complete bodily hair loss.