Browse our Health Library to learn about treatments, conditions, and how Cedars-Sinai can support your healthcare needs.
Narcolepsy is a sleep disorder. It is a lifelong disease of the central nervous system. Narcolepsy causes excessive and overwhelming daytime sleepiness, even after getting plenty of nighttime sleep. If you have narcolepsy, you are likely...
Cancerous nasal cavity or sinus tumors are rare, with only about 2,000 being diagnosed in the United States each year. Men are more likely to get sinus cancer than women. The most common age for diagnosis of the condition is in the 50s ...
A nasal fracture is a break in one or more of the bones of the nose, caused by trauma. It’s also called a broken nose.
Nasal polyps are abnormal, soft, swollen, sac-like growths of inflamed tissue. They line the inside of your nose or your sinuses.
Natal teeth are teeth that are present when a baby is born. The teeth are often not fully developed and may have a weak root.
Your neck is at risk for injury because of its location and range-of-motion. Neck pain can be caused by injury, age, or inflammatory disorders.
Necrotizing colitis (NC) is a serious health problem. It happens when part of your colon dies. This is often because of colon cancer. If you have NC, it usually means you need to have emergency surgery.
Necrotizing enterocolitis (NEC) is a serious illness in newborns. It happens when tissue in the large intestine (colon) gets inflamed. This inflammation damages and sometimes kills the tissue in your baby’s colon.
Necrotizing pancreatitis (NP) is a health problem in which part of your pancreas dies. This is because of inflammation or injury. If the dead tissue gets infected, it can cause serious issues.
A necrotizing soft tissue infection causes patches of tissue to die. It is a very serious and life-threatening condition requiring immediate medical care.
Neonatal abstinence syndrome is what happens when babies are exposed to drugs in the womb before birth. Babies can then go through drug withdrawal after birth.
Nephrotic syndrome causes scarring or damage to the filtering part of the kidneys (glomeruli). This causes too much protein to be lost from the blood into the urine.
Neuroblastoma is a cancerous tumor. It grows in nerve tissue of babies and young children. The cancer cells grow in young nerve cells of a baby growing in the womb. These cells are called neuroblasts. It’s is the most common cancer in ...
Neurocutaneous syndromes are disorders that affect the brain, spinal cord, organs, skin, and bones. The diseases are lifelong conditions that can cause tumors to grow in these areas. They can also cause other problems such as hearing ...
The muscles and nerves of the urinary system work together to hold and release urine at the right time. Nerves carry messages between the bladder and the spinal cord and brain. The messages tell the muscles of the bladder to either ...
Neurogenic bladder means the bladder doesn’t work normally because of nerve damage. It causes a child to have problems with holding or releasing urine.
Neurogenic bowel is the loss of normal bowel function. It’s caused by a nerve problem. A spinal cord injury or a nerve disease may damage the nerves that help control the lower part of the colon, which sends solid waste out of the body. ...
Neuromyelitis optica, also called NMO, is a rare yet severe autoimmune inflammatory process affecting the central nervous system.
Neuronal and mixed neuronal-glial tumors are a group of rare tumors that occur in the brain or spinal cord.
Your child’s inner ears may be damaged if he or she is around extremely loud noises or around loud noises for long periods of time. This is called noise-induced hearing loss.
NHL is a type of cancer in the lymphatic system. The lymphatic system is part of the immune system. It helps to fight diseases and infections. The lymphatic system also helps with balancing fluids in different parts of the body.
Normal pressure hydrocephalus is excess cerebrospinal fluid buildup in the brain ventricles. It may develop from infection ,bleeding, injury, or surgery.
A nosebleed is bleeding from tissues inside the nose (nasal mucus membranes) caused by a broken blood vessel. Most nosebleeds in children occur in the front part of the nose close to the nostrils.
Nursemaid’s elbow is a type of elbow injury. It’s when a forearm bone (radius) slips out of place from where it normally attaches to the elbow joint.