PKU, or phenylketonuria, is a genetic disorder that blocks the body's ability to break down an amino acid called phenylalanine, which is found in protein. The build-up of phenylalanine can cause brain damage. Today, all babies born in the United States are routinely screened for PKU (phenylketonuria), at birth. Follow the links below to find WebMD's comprehensive coverage about how PKU is inherited, what the symptoms are, how to treat it, and much more.
What Is a PKU Test?
Your baby is just a day old and she’s already taking her first test. This important blood screening looks for rare conditions, including PKU. Here’s what you need to know.
Your Genetic Testing Options in Pregnancy
Genetic tests can tell you more about your baby’s health. Learn which options might work for you during or before pregnancy.