Explore comprehensive guides on hundreds of common and rare diseases and conditions from the experts at Mayo Clinic.

The Neonatal Research Network (NRN), supported through NICHD’s Pregnancy and Perinatology Branch, was established in 1986 to improve the care and outcomes of neonates, especially very-low …

Dec 23, 2025 · Sometimes celiac disease becomes active after surgery, pregnancy, childbirth, viral infection or severe emotional stress. When the body's immune system overreacts to gluten in food, …

Oct 28, 2013 · About Pregnancy Pregnancy is the term used to describe the period in which a fetus develops inside a woman's womb or uterus. Pregnancy usually lasts about 40 weeks, or just over 9 …

Dec 23, 2025 · Cholestasis of pregnancy can make you very uncomfortable. But more worrisome are the potential complications, especially for your baby. Because of the risk of complications, your …

Pregnancy is a period of up to 41 weeks in which a fetus develops inside a woman’s womb. NICHD conducts and supports research and training to help promote healthy pregnancies, with a focus on …

Mar 12, 2022 · However, some women who have an ectopic pregnancy have the usual early signs or symptoms of pregnancy — a missed period, breast tenderness and nausea. If you take a pregnancy …

Managing Gestational Diabetes: A Patient’s Guide to a Healthy Pregna ncy provides some general guidelines for keeping yourself healthy and for promoting the best outcomes for your baby if you …

Sep 20, 2025 · Issues during pregnancy. In pregnant people, serious iron deficiency anemia has been linked to babies born too early and weighing too little at birth. Taking iron supplements as part of …

Dec 30, 2020 · Pregnancy is a period of up to 41 weeks in which a fetus develops inside a woman’s womb. NICHD conducts and supports research and training to help promote healthy pregnancies, …