How does your doctor diagnose acne? Usually,  your doctor can diagnose acne just by examining the affected areas.  There are, however, some very important things you should mention to your doctor if it applies to you. Tell your doctor if your have:

1.  sensitive skin or a history of atopic eczema.
2. a history of kidney or liver problems.
3. an allergy to anything.
4. ever used anabolic steroids.
5. a problem with mood disorders, depression or suicidal thoughts.
6. irregular menses or use contraception.
7. a current or past pregnancy, weight gain, diabetes, loss of scalp hair, infertility, hirsutism or breast feeding.