- About the Nervous System
Do you know how your nervous system works? This system coordinates all your body’s activities, and chances are it’s functioning normally during your pregnancy. In the rare case that it’s not, here’s what you need to know.
- Acquired Immune Deficiency Syndrome (AIDS)/Human Immunodeficiency Virus (HIV)
HIV can be passed to a child when he or she is in the mother's womb or as the infant passes through the birth canal. The virus has also been detected in breast milk.
- Acute Fatty Liver of Pregnancy
Acute fatty liver of pregnancy is a rare, but serious, condition of pregnancy in which there is an excessive accumulation of fat in the liver or liver cells.
- Alcohol and Pregnancy
Alcohol consumption by the mother is a leading cause of preventable birth defects in the fetus. In addition, the risk for miscarriage and stillbirth increases with alcohol consumption.
- Alpha-fetoprotein (AFP)
Alpha-fetoprotein screening is a blood test that measures the level of AFP in the mothers' blood. Abnormal levels may indicate certain problems with the fetus.
Detailed information on amniocentesis, including potential risks and benefits
- Amniotic Fluid Problems/Hydramnios/Oligohydramnios
Too much or too little amniotic fluid around the fetus can cause problems. These include preterm labor, birth defects, and underdeveloped lungs in the fetus.
- Anemia in Pregnancy
Doctor appointments and baby showers aren’t the only things that can tucker you out when you’re pregnant. Anemia is a condition that also can make you feel fatigued. Find out what you need to know to safeguard yourself.
- Antiphospholipid Syndrome (aPL)
This disease can have serious effects in pregnancy, both for the mother and the baby. These include strokes, blood clots, and recurrent miscarriage.
- Asthma and Pregnancy
With proper asthma management and good prenatal care, most women with asthma can have healthy pregnancies.
- Autoimmune Diseases
Detailed information on autoimmune diseases and pregnancy
- Biophysical Profile (BPP)
A biophysical profile is a test that combines a nonstress test with ultrasound. It's usually performed in the last trimester.
- Bleeding in Pregnancy/Placenta Previa/Placental Abruption
Bleeding may occur at various times in pregnancy. Although bleeding is alarming, it may or may not be a serious complication.
- Care and Management of Multiple Pregnancy
A woman with a multiple pregnancy needs more calories and nutrients, more frequent prenatal visits, and more rest.
- Cholestasis of Pregnancy
Cholestasis of pregnancy is a condition in which the normal flow of bile in the gallbladder is slowed or stopped resulting in itching and jaundice.
Chorioamnionitis is an infection of the membranes and amniotic fluid. It occurs in about 1 to 2 percent of all pregnancies, but is much more common in preterm births.
- Chorionic Villus Sampling
Detailed information on chorionic villus sampling, including potential risks and benefits
- Chronic Hypertension
When a woman has pre-existing hypertension or develops hypertension before the 20th week of pregnancy, this is called chronic hypertension.
- Complications of Multiple Pregnancy
Having more than one baby is especially exciting—and complicated. Find out what to watch for, including a greater chance of anemia and preterm birth.
- Diabetes and Pregnancy
It's important for a woman with diabetes to keep her blood sugar under tight control while she's pregnant.
- Digestive and Liver Disorders
Detailed information on digestive and liver disorders during pregnancy
- Digestive and Liver Disorders Overview
- Doppler Flow Studies
Doppler flow is a type of ultrasound that measures the flow of blood through a blood vessel. Doppler flow studies may be used to assess blood flow in the umbilical blood vein and arteries, fetal brain, and fetal heart.
- Ectopic Pregnancy
Ectopic pregnancies nearly always occur in the fallopian tube. Rarely, an ectopic pregnancy will be located in an ovary or in the cervix, or even in the abdomen.
- Epilepsy and Pregnancy
Epilepsy and the medications to treat it can have affect the mother, the pregnancy, and the fetus and newborn. Fortunately, most women are able to have a healthy pregnancy and baby.
- Fetal Blood Sampling
Fetal blood sampling is a procedure to remove a small amount of blood from the fetus during pregnancy. It may be taken to diagnose problems or an infection.
- Fetal Monitoring
Detailed information on fetal monitoring, including potential risks and benefits
- Fetal Movement Counting
Fetal movement counting, often called kick counting, is a way a mother can help monitor the movements of her unborn baby by counting the number of kicks in a certain time period.
- First Trimester Screening
Screening during the first trimester is a combination of ultrasound and two blood tests. These tests can help determine the risk of certain birth defects.
Genetics is the study of the patterns of inheritance - how traits and characteristics are passed from parents to their children.
- Gestational Diabetes
Gestational diabetes is a condition in which a pregnant woman has elevated glucose levels and other symptoms of diabetes—but did not have diabetes before she became pregnant.
- Gestational Hypertension
Pregnancy-induced hypertension is also called toxemia or preeclampsia. It occurs most often in young women with a first pregnancy.
- Glossary - High-Risk Pregnancy
Glossary of terms relating to high-risk pregnancy
- Heart Disease and Pregnancy
In pregnancy, blood volume increases greatly. This extra fluid puts an increased workload on the heart and may cause problems for a woman with heart disease.
- HELLP Syndrome
HELLP syndrome is a serious complication of severe pregnancy-induced high blood pressure. It usually develops before delivery, but may also occur after delivery.
It is important that women avoid contracting herpes during pregnancy, because a first episode during pregnancy creates a greater risk of transmission to the newborn.
- Home Page - High-Risk Pregnancy
Detailed information on high-risk pregnancy
- Hyperemesis Gravidarum
Vomiting—especially during the first trimester—is normal for many women during pregnancy. Constantly vomiting is not. Take action to prevent a serious complication.
- Hyperthyroidism in Pregnancy
Uncontrolled hyperthyroidism has many effects. It may lead to preterm birth and low birthweight. It may also bring on pregnancy-induced high bloo pressure.
- Hypothyroidism and Pregnancy
Signs of an underactive thyroid gland (hypothyroidism) may be masked by pregnancy. But the thyroid is important for your baby’s brain development. Learn if you should be screened for hypothyroidism.
- Illegal Drug Use and Pregnancy
Almost every drug passes from the mother's bloodstream through the placenta to the fetus. Illicit substances that cause drug dependence and addiction in the mother also cause the fetus to become addicted.
- Intrauterine Growth Restriction (IUGR)
Newborn babies with this condition often appear thin, pale, and have loose, dry skin. The umbilical cord is often thin and dull-looking rather than shiny and fat.
You’ve probably been warned not to eat brie cheese or order your steak cooked to anything less than medium. Why do you have to take these precautions? Listeriosis. Learn more about this food-borne illness and how to avoid it.
- Maternal and Fetal Infections
In pregnancy, infections are a common complication—but women may not have obvious symptoms, or they may show different symptoms of an infection.
- Maternal and Fetal Infections Overview
- Maternal and Fetal Testing
Women with high-risk pregnancies often need a close watch for potential problems or complications. Many tests and procedures are available to monitor the health of both mother and baby.
- Maternal and Fetal Testing Overview
- Medical Conditions and Pregnancy
With proper medical care, most women can enjoy a healthy pregnancy, despite medical challenges such as diabetes or high blood pressure.
- Medications and Pregnancy
All medications you take affect the fetus, depending on the stage of development, the type and dosage of the medication being taken, and your drug tolerance.
- Migraine Headache
Many women experience migraine headaches while pregnant. The good news is that you don’t have to give in to the pain when it strikes. Know what pain-relief options are safest for you.
Ultrasound is usually used to diagnose miscarriage. If the fetus is no longer in the uterus, or there is no longer a fetal heartbeat, miscarriage is diagnosed.
- Multiple Pregnancy
Detailed information on multiple pregnancies, including care of multiple birth babies
- Multiple Sclerosis and Pregnancy
Pregnancy does not appear to speed up the course or worsen the effects of MS. Some studies have found that MS symptoms decrease in pregnancy and increase after delivery.
- Myasthenia Gravis and Pregnancy
Pregnant women with MG often have more weakness and fatigue because of the added weight and effort of pregnancy. Preterm labor (labor before 37 weeks of pregnancy) is more likely.
- Neurological Conditions and Pregnancy
Detailed information on neurologic conditions in pregnancy
- Newborn Multiples
Because many multiples are small and born early, they may be initially cared for in a special care nursery called the neonatal intensive care unit.
- Nonstress Testing
Detailed information on nonstress testing
- Nutrition Before Pregnancy
You need about 300 extra calories a day to maintain a healthy pregnancy. These calories should come from a balanced diet of protein, fruits, vegetables, and whole grains.
- Online Resources - High-Risk Pregnancy
List of online resources to find additional information on high-risk pregnancies
- Overview of Birth Defects
A "birth defect" is a health problem or physical change that is present in a baby at the time he/she is born.
- Overview of Multiple Pregnancy
Multiple pregnancy is a pregnancy with two or more fetuses. In the United States, the multiple birth rate is rising.
- Overview of Pregnancy Loss
Pregnancy loss occurs in more than half of early pregnancies. Most of these occur so early that the mother does not even know she is pregnant.
- Planning a Pregnancy
Planning ahead and taking care of yourself before becoming pregnant is the best thing you can do for you and your baby.
- Postpartum Hemorrhage
Postpartum hemorrhage is excessive bleeding after the birth of a baby. Most postpartum hemorrhage occurs right after delivery, but it can occur later as well.
- Postpartum Thyroiditis
Postpartum thyroiditis is a temporary but fairly common condition that results in either an overactive or underactive thyroid.
- Post-Term Pregnancy
A pregnancy that lasts more than 42 weeks is considered post-term. Post-term pregnancy is associated with longer labors and the need for cesarean delivery.
- Preconception Care
Detailed information on preconception care
- Pregnancy and Medical Conditions
Detailed information on pregnancy and medical conditions
- Pregnancy Complications
Detailed information on the most common complications during pregnancy
- Pregnancy Loss
Detailed information on pregnancy loss, including types, causes, symptoms, diagnosis, and treatment
- Pregnancy Over Age 30
Many women today are waiting until later in life to have children. In the United States, birth rates for women in their 30s are at the highest levels in three decades.
- Premature Rupture of Membranes (PROM)/Preterm Premature Rupture of Membranes (PPROM)
Rupture of the membranes near the end of pregnancy may be caused by a natural weakening of the membranes or from the force of contractions.
- Prenatal Counseling
Detailed information on prenatal diagnosis to detect fetal abnormalities in the womb
- Preterm Labor
Preterm birth is the greatest problem associated with preterm labor. Although most babies are born after 37 weeks, those born preterm are at increased risks for many complications.
- Rh Disease
Rh disease occurs during pregnancy when there is an incompatibility between the blood types of the mother and baby.
- Risk Factors
Detailed information on identifying potential risks of a pregnancy as an important part of preconception care
- Second Trimester Prenatal Screening Tests
Screening is usually performed by taking a sample of the mother's blood between the 15th and 20th weeks of pregnancy (16th to 18th is ideal).
- Sickle Cell Disease and Pregnancy
Whether it’s your first or third trimester, you’re likely to face changes to your sleep habits while pregnant. Discover what it takes to feel rested no matter what stage you’re in.
- Smoking and Pregnancy
Don't smoke during your pregnancy and limit how much time you spend in environments where there is secondhand smoke.
Stillbirth is a common term for death of a baby while still in the uterus. Common causes are high blood pressure or infection in the mother, or placental or cord problems.
- Symptoms and Diagnosis of Multiple Pregnancy
Every pregnant woman feels like she’s getting big, but if you’re pregnant with two or more babies, you’ll really be growing fast. Be prepared by learning the signs of a multiple birth.
- Systemic Lupus Erythematosus (SLE, or Lupus) and Pregnancy
Lupus can affect pregnancy at any stage. It is not clear whether the severity of the disease or the type of medication causes problems.
- The Lungs in Pregnancy
Detailed anatomical information on the respiratory system in pregnancy
- The Lungs in Pregnancy
Detailed anatomical information on the respiratory system in pregnancy
- Thyroid Conditions
Detailed information on thyroid conditions and pregnancy
- Topic Index - High-Risk Pregnancy
Detailed information on high-risk pregnancy
Toxoplasmosis is not only harmful to moms-to-be, but also to their unborn babies. If you haven’t heard of toxoplasmosis, you’ll definitely want to brush up on this new word.
- Types of Genetic Diseases
Genetic diseases are classified by type: chromosomal abnormalities, single gene defects, problems caused by exposure to certain substances, or a combination of these.
- Ultrasound in Pregnancy
Detailed information on ultrasound and the potential risks and benefits
- Urinary Tract and Kidney Infections
During pregnancy, the kidney enlarges and the bladder is compressed by the growing uterus. These and other factors make it more likely for a woman to develop a urinary tract infection.