The Obstetrician/Gynecologist (OB/GYN) is responsible for providing medical care to women relating to pregnancy or childbirth; responsible for treating, testing, diagnosing and monitoring diseases and provide general care to women. The gynecologist's responsibilities include performing breast examinations, prescribing suitable medications, and identifying malignant tumors within the female reproductive system. You should also be able to advise patients on how to cope with the symptoms of menopause and perimenopause. A gynecologist diagnoses and treats issues with female reproductive organs. They deal with all aspects of sexual health like preventive care, cancer screenings and physical exams. Some of the services and tests provided are: Pelvic exams and external genital exams.