The National Institutes of Health Publication 06-5129, "What I Need to Know About Gestational Diabetes," is for women with gestational diabetes. Gestational (jes-TAY-shun-ul) diabetes is diabetes that is found for the first time when a woman is pregnant. Out of every 100 pregnant women in the United States, three to eight get gestational diabetes. Diabetes means that your blood glucose (also called blood sugar) is too high. Your body uses glucose for energy. But too much glucose in your blood can be harmful. When you are pregnant, too much glucose is not good for your baby. This high blood glucose can damage many parts of your body, such as the heart, blood vessels, eyes, and kidneys. Heart and blood vessel disease can lead to heart attacks and strokes. You can do a lot to prevent or slow down diabetes problems.