Eyebrow loss. Does it sound like AGA, alopecia areata, or CTE? (Photo)

I'd recommend you see a dermatologist. That's the only way to solve the answer. AGA does not cause brow and lash loss. CTE rarley does and does not typically cause in the manner shown in the photo. Alopecia areata is usually not associated with itchy/burning feelings.Please see a dermatologist. Top 5 possibilities for a photo such as this with limited description include: 1) alopecia areata, 2) frontal fibrosing alopecia and similar autoimmune conditions 3) endocrine abnormality (especially thyroid disorders), 4) an inflammatory process and 5) traumatic/overtweezing, etcA dermatologist can help you determine if any of these 5 are present once he or she looks up close and knows more of your story - or whether another cause is present. In total there are over 100 causes of eyebrow loss.

This is not a simple diagnosis to make by the picture you showed. You should see a local dermatologist to help determine what this problem represents

Your eyebrow loss cannot be definitely diagnosed over the internet.  A doctor has to do an exam and a detailed history, preferably with a microscope to look at the skin (called a dermatoscope).  Find someone who really knows about hair loss (either a dermatologist or a hair doctor) and get seen in person as soon as possible since some treatments work best the sooner they are started.
Good luck!