When you see a doctor about acne, you'll have a physical exam, and your doctor will ask about your medical history. Women may be asked questions about their menstrual cycles. This information can help your doctor find out if hormones are playing a role in acne flare-ups. Most often, you won't have any special tests to diagnose acne.
You may need other tests if your doctor suspects that acne is a symptom of another medical problem (such as higher-than-normal amounts of testosterone in a woman).