Browse our Health Library to learn about treatments, conditions, and how Cedars-Sinai can support your healthcare needs.
Achondroplasia is a group of rare genetic (inherited) bone disorders. Achondroplasia is the most common type of what was once called dwarfism, in which the child's arms and legs are short in proportion to body length.
Acne is a disorder of the hair follicles and sebaceous glands. Hair follicles are the areas around the base or root of each hair. Sebaceous glands are the tiny glands that release oil (sebum) into the hair follicles. The sebum moistens ...
Bronchitis is an inflammation of the large breathing tubes (bronchi) in the lungs. Short-term (acute) bronchitis means that the symptoms often develop quickly and don’t last long.
Acute spinal cord injury (SCI) is when the spinal cord is damaged from an accident or other situation. An SCI may be a bruise (contusion), a partial tear, or a complete tear (transection) in the spinal cord.
Addison disease is when the adrenal glands don't make enough of two steroid hormones. The hormones are cortisol and aldosterone. Cortisol controls the body's metabolism, blocks inflammatory reactions, and affects the immune system. ...
Adenoviruses are a group of viruses that cause a variety of infections. These include the common cold, conjunctivitis, and croup.
An adjustment disorder is an unhealthy emotional or behavioral reaction to a stressful event or change in a person’s life. The response happens within 3 months of the stressful event.
AIDS-related lymphoma is a type of cancer called non-Hodgkin lymphoma. It grows in some people with AIDS. AIDS is a disease that weakens the immune system. AIDS raises the risk for long-term (chronic) disease, such as cancer.
Rhinitis is a reaction that happens in the eyes, nose, and throat when allergens in the air trigger the release of histamine in the body. Histamine causes itching, swelling, and fluid to build up in the fragile linings of nasal passages,...
Anemia is a common problem in children. A child who has anemia does not have enough red blood cells or hemoglobin. Hemoglobin is a type of protein that allows red blood cells to carry oxygen to other cells in the body.
Anencephaly is a birth defect that affects the brain and skull bones. With this condition, the brain is not fully formed. It often lacks part or all of the cerebrum.
Ankyloglossia, or “tongue-tie,” is a type of anatomical problem of the tongue that is present from birth. It causes speech and eating difficulties in some children.
DiGeorge syndrome, also known as 22q11.2 deletion syndrome, is a genetic disorder that can cause many health problems. These problems may range from heart defects and developmental delays to seizures.
Aortic stenosis means that your child has a heart valve that is too narrow or is blocked. The aortic valve is 1 of 4 heart valves that keep blood flowing through the heart. The valves make sure blood flows in only one direction. The ...
Allergies are problems of the immune system. Most allergic reactions happen when the immune system reacts to a “false alarm.” Normally, the human body defends itself against harmful things, such as viruses or bacteria. But sometimes the ...
Alpha thalassemia is an inherited blood disorder. This means it is passed down through the parent’s genes. It causes anemia in affected children. Anemia is a low red blood cell or low hemoglobin level. Hemoglobin is the part of red blood...
Amenorrhea is when a girl’s menstrual bleeding (period) doesn’t occur.
Anaphylaxis is a severe and sometimes life-threatening reaction to an allergen. An allergen is something that your child is allergic to. Anaphylaxis is a medical emergency. Your child can have a reaction to an allergen as quickly as ...
An arrhythmia is an abnormal rhythm of the heart. In an arrhythmia, abnormal electrical signals through the heart muscle may cause the heart to beat too fast (tachycardia), too slow (bradycardia), or irregularly.
Aspiration is when something enters the airway or lungs by accident. It may be food, liquid, or some other material. This can cause serious health problems, such as pneumonia.
An anomalous coronary artery (ACA) is a heart defect. This is something your baby is born with (congenital). In ACA, the blood vessels that supply blood to your child’s heart muscle aren’t normal.
Anorexia nervosa is an eating disorder. It is a form of self-starvation. Children and teens with this health problem have a distorted body image. They think they weigh too much.
Aplastic anemia is a serious condition in which the bone marrow doesn’t make enough new blood cells.
Apnea is a term that means breathing has stopped for more than 20 seconds. It can happen in full-term babies, but it is more common in premature babies. The more premature the baby, the greater the chances that apnea will occur.
Appendicitis is a painful swelling and infection of the appendix. It is a medical emergency. The appendix can burst or rupture. This is serious and can lead to more infection. If not treated, it can be fatal.
Asthma is a long-term (chronic) lung disease that causes your child's airways to become sensitive to certain things (triggers).
Atopic dermatitis is a long-term (chronic) skin condition. It causes dry, itchy skin. It’s a very common condition in babies and children. It usually first appears between ages 3 and 6 months.
Astrocytoma is the most common type of brain tumor in children. It is usually low grade, which means slow-growing.
Autism spectrum disorder is a problem that affects a child’s nervous system and growth and development. It usually shows up during a child’s first 3 years of life.
Bacterial endocarditis is an infection of the lining of the heart (endocardium), and the heart valves. It does not happen very often, but when it does, it can cause serious heart damage.