Dr Neha Pawar is the Best Infertility Specialist in Andheri West, Andheri and Mumbai. A Infertility specialist is a medical professional who specialises in diagnosing and treating fertility problems, in order to help people who have been unsuccessfully trying to have a baby. Fertility specialists treat conditions associated with both male and female infertility. What causes infertility? Overexposure to certain environmental factors, such as pesticides and other chemicals, and radiation. Cigarette smoking, alcohol, marijuana, anabolic steroids, and taking medications to treat bacterial infections, high blood pressure and depression also can affect fertility.