While most pregnancies progress normally and don’t have any serious complications, sometimes rare complications occur that interfere with normal fetal development. These may be related to a genetic disorder, problems with the fetus’s chromosomes, or abnormal placental development.

Gestational trophoblastic disease (GTD) is the term given to a group of rare tumors that develop during the early stages of pregnancy. After conception, a woman’s body prepares for pregnancy by surrounding the newly fertilized egg or embryo with a layer of cells called the trophoblast.

Molar pregnancy, a rare pregnancy complication, led to uterine cancer and threatened Maggie’s health and her chance of having a second baby. Effective treatment and caring experts made all the difference.

Rare Pregnancy Complications Patient Story Highlights Baby Ezra is born at 23 weeks gestation, weighing only 1 pound, 0.6 ounces.

A pregnancy that develops outside the uterus is called an ectopic pregnancy. This nearly always happens in a fallopian tube. So it’s often called a tubal pregnancy. In rare cases, an ectopic pregnancy will happen in an ovary, in the cervix, or the …

Women can — and should — balance their mental health needs with a healthy pregnancy. Antidepressants and Pregnancy. Women who take antidepressants, such as selective serotonin reuptake inhibitors (SSRIs), during pregnancy may worry about whether the medications can cause birth defects.

Staying Healthy During Pregnancy; Rare Pregnancy Complications; Fertility and Reproductive Health; Diagnosis and Screening for Gynecologic Conditions

Twin reversed arterial perfusion (TRAP sequence) is a rare condition of monochorionic twin pregnancies. It arises when the cardiac system of one twin does the work of supplying blood for both twins. The twin supplying the blood is known as the "pump twin" and develops normally in …

Most cases of preeclampsia occur between the 24th and 27th weeks of pregnancy or soon after giving birth (postpartum preeclampsia), but can occur any time after 20 weeks of pregnancy. Signs and Symptoms of Preeclampsia

Twin-to-twin transfusion syndrome (TTTS) is a rare pregnancy condition affecting identical twins or other multiples. TTTS occurs in pregnancies where twins share one placenta (afterbirth) and a network of blood vessels that supply oxygen and nutrients essential for development in the womb.