Inclusion Criteria:

• * A subject must meet all the following criteria to participate in the registry:
• 1. Has been diagnosed with alopecia areata by a dermatologist or a qualified dermatology practitioner.
• 2. Is at least 18 years of age or older.
• 3. Is willing to provide Personal Information.
• 4. Is prescribed or starting an Enrollment Eligible Medication at the time of enrollment.

Exclusion Criteria:

• * Any of the following would exclude the subject from participating in the registry:
• 1. Is participating or planning to participate in a double-blind randomized trial for an AA drug. Note:
• Concurrent participation in another observational registry or open-label Phase 3b/4 trial is allowed.