UCLA researchers seek Caucasian and Non-Hispanic women; 18-35 years old; not using hormones; BMI 18.5-25. Subjects can be normal controls (regular periods) or have 1) a PCOS diagnosis or 2) irregular menstrual periods <21 or > 35 days apart) with excessive body hair on lip, chin, chest, and/or abdomen. Participants receive free extensive medical testing. Controls may earn up to $300; non-controls up to $840. 310-825-7301 OR firstname.lastname@example.org. To protect your privacy, please do not include personal health information in emails.