A developmental disorder affecting the nervous system. Symptoms vary in range and severity and may include communication challenges, difficulty interacting in social settings, obsessive interests and repetitive behaviors.

Occurs when a child is not reaching all of his or her developmental milestones. Developmental delay can relate to gross or fine motor, language, social or thinking skills.

Speech Language delay refers to a developmental delay in a child's ability to make sounds through use of the lungs, vocal cords, mouth, tongue and teeth; for example, articulation or pronunciation. This term is often used to describe a language delay, which refers to a delay in expressive or receptive communication ability

A term used to describe infants born before the 37th week of pregnancy. Infants born prematurely may experience motor, language, cognitive or other developmental delays, sensory losses such as hearing or visual impairment or feeding difficulties.

Babies born prematurely and children with developmental delays have an increased risk of delayed growth, where their measurements show a slower than normal rate of growth.

May result from damage of the fragile blood vessels and/or the white matter in premature babies. Often, this is caused by a complex mix of events that may occur while the fetus is in the womb, during the delivery or after birth.

Also known as bronchopulmonary dysplasia (BPD), occurs if growth in parts of a baby's lungs are disrupted, altering the lung structure and function. CLD can lead to continued lung problems for some children. Because severe CLD can cause decreased oxygen to parts of the baby's body, it also can lead to problems with the baby's heart, and with hearing, motor skills, speech and learning.

Congenital heart disease (CHD) is a term used to describe a group of problems present at birth that affect the structure of the heart and/or the large vessels near the heart. There are many types of CHD. Some types may be detected before birth and, in some cases, may be treated before birth. Other types are not found until the baby is born, during childhood or in adulthood.

Congenital malformations, also called birth defects, are abnormalities that happen while a baby is still in the womb. There are many types of congenital malformations that may affect organs (such as the heart, lungs or brain) or body parts (such as eyes, hands, fingers or feet).

The amount of sugar in our blood, called blood sugar or blood glucose, is the fuel that keeps all of our body systems working. If this level dips too low, it is called hypoglycemia. Low blood sugar can happen in any newborn, but some babies have a higher risk for it. Because a baby's body requires so much energy (sugar) after birth, low blood sugar usually occurs within the first few hours after birth. In general, the risk for low blood sugar in a healthy, full-term newborn declines shortly after birth. Yet, if blood sugar stays too low for too long without treatment, it can affect the brain. The effects can range from mild to severe, and may result in learning problems, vision problems and impaired development of motor skills and speech.

A term used to describe a yellow color in a baby's skin and in the white parts of the eyes. Jaundice sometimes appears when there is a high level of a substance called bilirubin in the baby's blood that causes the yellow color.

Occurs when a baby breathes in a waste substance, called meconium, before birth or during delivery, which then causes injury to the lung tissue.

Necrotizing enterocolitis is a gastrointestinal disease that mainly affects babies born prematurely and those born with extremely low birth weight (ELBW) (less than 2.2 pounds or 1,000 grams).

A problem with a baby's heart that occurs when a small blood vessel that passes between the two largest blood vessels just outside the heart does not close up after birth.

A problem in which the blood pressure in a baby's lungs is too high.

A problem in which a baby, usually a premature infant, has trouble breathing. RDS happens when the baby's lungs do not produce enough of a series of soap-like chemicals called surfactant to make the lungs less stiff so they can work well.

A problem with a baby's eyes. The retina is a thin layer of tissue that covers the back portion of the eyeball. In babies born early, blood vessels still need to grow in the retina. In some babies, these vessels grow too fast and in a corkscrew shape. This process can cause bleeding and scarring. Scarring sometimes pulls the retina off the back of the eye. This can cause loss of sight or decreased vision.