Health Library

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

Showing 1 - 30 of 40 results.
Labyrinthitis

Labyrinthitis is the inflammation of part of the inner ear called the labyrinth. The inflammation causes vertigo, hearing loss, and other symptoms.

Lactose Intolerance

Lactose intolerance is when your body can’t break down or digest lactose. Lactose is a sugar found in milk and milk products. Lactose intolerance happens when your small intestine does not make enough of a digestive enzyme called ...

Lactose Intolerance in Children

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

Lambert-Eaton Syndrome

Lambert-Eaton syndrome is an autoimmune disorder affecting the areas where nerves and muscles connect. It causes weak muscles, trouble walking, and other symptoms.

Language Disorders in Children

Diseases & Conditions - Pediatrics

Large for Gestational Age

Large for gestational age is used to describe newborn babies who weigh more than the usual amount for the number of weeks of pregnancy. Babies are called large for gestational age if they weigh more than 9 in 10 babies of the same ...

Laryngeal Cancer: Overview

Laryngeal cancer starts in the voice box (larynx), which is located in your neck. Learn more about symptoms, diagnosis, and treatments.

Lateral Collateral Ligament Tears

Tears to the lateral collateral ligament most often occur from a direct blow to the inside of the knee. This can stretch the ligaments on the outside of the near too far and may cause them to tear. This type of injury occurs in sports. ...

Learning Disorders in Children

A learning disorder is when a child has trouble learning in certain school subjects. Your child may have problems with reading, math, or writing. Here's what you need to know, and how to help.

Left Bundle Branch Block

In left bundle branch block, there is a problem with the left branch of the electrical conduction system. The electrical signal can’t travel down this path the way it normally would. The signal still gets to the left ventricle, but it is...

Left Bundle Branch Block

Diseases & Conditions

Legg-Calvé-Perthes Disease in Children

Legg-Calvé-Perthes disease (or Perthes disease) is a rare hip condition that affects children.

Leukemia in Children

Leukemia is cancer of the blood. It’s the most common form of cancer in childhood. The cancer cells grow in bone marrow and go into the blood.

Lichen Sclerosus

Lichen sclerosus is a long-term (chronic) skin condition. It causes the skin to become thin, white, and wrinkly.

Lisfranc Joint Injury

A Lisfranc joint injury is a type of injury to the bones or ligaments in the middle part of your foot. In this type of injury, there also is usually damage to the cartilage covering these bones.

Liver Cancer Overview

Liver cancer is cancer that starts in your liver. There are different kinds of liver cancer, but the most common type in adults is called hepatocellular carcinoma. Learn more about symptoms, diagnosis, and treatments.

Long QT Syndrome

Diseases & Conditions

Lordosis in Children

Lordosis is a deformity of the backbone (spine). It's when the bones of the spine (vertebrae) in the lower back curve inward more than normal.

Low Back Pain

Everyone has experienced low back pain at one time or another. Most people can recover from low back pain with home treatment, such as changes in activity, weight loss, quitting smoking, and other steps. Sometimes medicine or surgery is ...

Low Birth Weight

Low birth weight is a term used to describe babies who are born weighing less than 5 pounds, 8 ounces (2,500 grams). An average newborn usually weighs about 8 pounds. A low-birth-weight baby may be healthy even though he or she is small....

Lumbar Disk Disease (Herniated Disk)

Lumbar disk disease occurs when the spongy disks between the vertebrae bulge out or rupture.

Lumbar Spinal Stenosis

Lumbar spinal stenosis is a narrowing of the spinal canal in your lower back that may cause pain or numbness in your legs.

Lumbar Spine

The lumbar spine is the lower back. It is made up of five or six vertebrae, depending on the individual. (The extra bone does not make a difference to one's health.) The vertebrae in the lumbar spine area are the largest of the entire ...

Lumbar Strain

Diseases & Conditions

Showing 1 - 30 of 40 results.
Visit Our Programs and Services

Cedars-Sinai has a range of comprehensive treatment options.

Looking for a Physician?

Choose a doctor and schedule an appointment.

Need Help?

(1-800-233-2771)

Available 24 Hours A Day

Feeling Sick or Injured?

Use our tool to help you understand your symptoms before scheduling an appointment.