<unk>  <unk>  is a surgical subspecialty of obstetrics and gynecology that trains physicians in<unk>  medicine addressing hormonal functioning as it pertains to reproduction as well as the issue of<unk> . While most<unk>  specialists primarily focus on the treatment of<unk> ,<unk> <unk> sts are trained to also test and treat hormonal dysfunctions in females and males outside<unk> .<unk> <unk> sts have specialty training (residency) in obstetrics and gynecology (ob-gyn) before they undergo sub-specialty training (fellowship) in<unk> .<unk>  surgery is a related specialty, where a physician in ob-gyn or urology further specializes to operate on anatomical disorders that affect fertility.
Reproductive endocrinology and infertility
Nutrition and pregnancy
Nutrition and Cancer
Breastfeeding and fertility
Reproductive medicine
Scientology and abortion
Abortion and mental health
Maternal–fetal medicine