Some genetic diseases may be very rare, but knowing they exist may help the individuals who have them get medical attention sooner. One such disease is Prader-Willi syndrome.

Being overweight can be a burden for an expectant mother. When it comes to labor and delivery, that extra weight can cause certain complications for both the mother and child.

Some babies don't grow as quickly as they should. This is called "failure to thrive." The important question is whether these babies ever catch up to other kids.

Alcohol and pregnancy don't mix. And neither does alcoholism and a baby's first year of life. Mothers who don't have alcohol problems are much more likely to see their babies grow up.

When the sluggishness from being pregnant hits you, it's tempting to brew a cup of coffee. And then another. And another. But does too much caffeine during pregnancy may affect your baby?

Couples unable to conceive a child naturally may turn to fertility options. Within fertility treatments, however, couples have a variety of choices to make. Do any make a difference?

There is no known single cause for autism. However, certain diseases or medications during pregnancy have been linked to autism. One culprit may be a medication used to treat epilepsy.

Women with a short cervix and women carrying twins are at higher risk for preterm birth. Women with both have an even higher likelihood of giving birth early.

Being born underweight is linked to a variety of possible health problems, including chronic diseases. It's therefore helpful to know ways to reduce the risk of having too-small babies.

Some mental disorders are linked to specific genes. But that does not mean a person with a certain gene is destined to develop that disorder. Healthy practices may decrease the risk.