Conditions & Treatments

Lactose intolerance is when the body can’t easily break down or digest lactose. Lactose is a sugar found in milk and milk products. ...

The term lambdoid craniosynostosis refers to the premature fusion of bones near the back of an infant’s skull. With lambdoid synostosis, the bones at the base of the skull fuse too soon, and this can cause issues with the baby’s appearance and with the development ...

Landau-Kleffner syndrome (LKS) is a rare nervous system disorder that causes the loss of ability to understand and use language, and it can cause seizures. Treatment can be done to help prevent seizures. ...

Langerhans cell histiocytosis, also called histiocytosis X, is a condition in which the level of a type of immune cell, called a Langerhans cell, is abnormally high. While Langerhans cell histiocytosis has been considered to be a type of cancer or a condition similar to ...

Large for gestational age is used to describe newborn babies who weigh more than usual for the number of weeks of pregnancy. ...

Laryngeal cleft is a rare abnormality of the separation between the larynx, or voice box, and the esophagus that occurs in less than one percent of the population. ...

A late effect is a chronic or late-occurring medical condition that persists or develops because of cancer or its treatment. ...

Facts about lead exposure Here are facts that can help you keep your children safe: Lead poisoning is a totally preventable disease. Lead exposure can harm young children and babies—even before they are born. Even children who seem healthy can have high levels of lead ...

A learning disorder is when a child has trouble learning in certain school subjects. Your child may have problems with reading, math, or writing. His or her skill is below what is expected for the child’s age, grade level, and intelligence. The problem is bad ...

What is mitochondrial inheritance? The chromosomes in the body are found in the center of the cells. This is called the nucleus. Outside of the nucleus are mitochondria. These are structures in the cytoplasm (liquid) of the cells. Mitochondria make energy for the cells. Mitochondria ...