Health Library

Browse our Health Library to learn about treatments, conditions, and how Cedars-Sinai can support your healthcare needs.

Showing 31 - 60 of 976 results.
Allergens: Poison Ivy/Poison Oak/Poison Sumac

Poison ivy, poison oak, and poison sumac are native American plants. These plants cause an allergic reaction in most people who are exposed to them.

Allergic Rhinitis in Children

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,...

Allergies in Children

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 ...

Allergy Overview

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

Thalassemia is an inherited blood disorder. It is passed down from one or both parents through their genes. There are two main types of thalassemia: alpha and beta. Different genes are affected for each type. Thalassemia can cause mild ...

Alpha Thalassemia in Children

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...

Alzheimer Disease

Alzheimer disease is a disease that affects the brain and nervous system. It is a type of dementia that happens when nerve cells in the brain die.

Amenorrhea

Amenorrhea means you haven't had your period for more than 3 cycles. It can be caused by a variety of things including overexercising, being overweight, or due to an ovulation problem.

Amenorrhea in Teens

Amenorrhea is when a girl’s menstrual bleeding (period) doesn’t occur.

Amyotrophic Lateral Sclerosis (ALS)

Amyotrophic lateral sclerosis is a fatal neurological disorder characterized by progressive degeneration of nerve cells in the spinal cord and brain. It is often referred to as Lou Gehrig's disease.

Analgesic Nephropathy

Taking one or a mix of painkiller medicines daily over a long time may cause chronic kidney problems. This is called analgesic nephropathy. Painkillers that combine 2 or more medicines (such as, aspirin and acetaminophen together) with ...

Anaphylaxis in Children

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 ...

Anaplasmosis

Anaplasmosis is an illness caused by bacteria that’s spread by ticks. The bacteria are called Anaplasma phagocytophilum. The illness causes fever, muscle aches, and other symptoms.

Anastomotic Stenosis (Stricture) After Gastric Bypass Surgery

After gastric bypass surgery for weight loss, the new connection between the stomach pouch and the small intestine may narrow. This is called an anastomotic stenosis. It’s also known as a stricture.

Anatomy of the Spine

The human spine is a complex anatomic structure that is the scaffolding for the entire body. It provides several important functions, including protection the spinal cord and nerves, and structural support for the body, allowing us to ...

Anemia in Children

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.

Anemia in Pregnancy

Anemia is when your blood has too few red blood cells. Having too few red blood cells makes it harder for your blood to carry oxygen or iron. This can affect how cells work in nerves and muscles. During pregnancy, your baby also needs ...

Anemia Overview

Anemia is a common blood disorder. It occurs when you have fewer red blood cells than normal, or not enough hemoglobin in your blood. When you have anemia, your blood can’t carry enough oxygen to your body. Without enough oxygen, your ...

Anencephaly in Children

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.

Aneurysm

An aneurysm is a bulging, weak area in the wall of a blood vessel. An aneurysm may occur in any blood vessel, but most often develops in an artery rather than a vein.

Angina Pectoris

Angina pectoris—or simply angina—is chest pain or discomfort that keeps coming back. It happens when some part of your heart does not get enough blood and oxygen.

Aniridia

Aniridia is a serious and rare eye disorder in which the iris is partly or completely gone.

Ankle Dislocation

A joint dislocation is when there is an abnormal separation between the bones of a joint. When this happens in your ankle joint, it’s known as an ankle dislocation. It is a severe injury.

Ankyloglossia in Children

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.

Ankylosing Spondylitis

Ankylosing spondylitis (AS) is a type of arthritis that affects the spine. Ankylosing means stiff or rigid, spondyl means spine, and itis refers to inflammation. The disease causes inflammation of the spine and large joints, resulting in...

Annular Pancreas

The term annular pancreas means that a ring of excess pancreatic tissue encases the first part of your small intestine. Your pancreas can still function with this irregularity, but the excess tissue can cause a number of symptoms. It can...

Anomalous Coronary Artery in Children

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.

Anorectal Malformation in Children

Anorectal malformations are birth defects, or problems that happen as an unborn baby is developing during pregnancy. With this defect, the anus and rectum don’t develop properly. They are the lower part of the digestive tract.

Anorexia Nervosa

Anorexia nervosa (or simply anorexia) is an eating disorder that causes people to obsess about their weight and food. People who suffer with this behavior problem have a distorted body image and see themselves as overweight even when ...

Anorexia Nervosa in Children

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.

Showing 31 - 60 of 976 results.
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