Diseases & Conditions

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A person with narcolepsy is likely to become drowsy or to fall asleep at inappropriate times and places, and sleep attacks may occur with or without warning.
Nasal Surgery
Nasal surgery includes any surgery performed on the outside or inside of the nose. It is a common type of reconstructive and cosmetic surgery.
National Surgical Adjuvant Breast and Bowel Project (NSABP)
Detailed information on breast cancer clinical trials, including the National Surgical Adjuvant Breast and Bowel Project
Detailed information on naturopathy as a form of alternative therapy
Neck Pain and Problems
Neck pain can result from many different causes—injury to muscles, tendons, or ligaments; arthritis; a herniated disc; or a tumor.
Neck Problems
Detailed information on the most common types of neck problems, including neck pain, torticollis, and whiplash injury
Nephrotic Syndrome
Detailed information on nephrotic syndrome, including cause, symptom, diagnosis, and treatment
Neurocutaneous Syndromes
Neurocutaneous syndrome is a broad term for a group of disorders. These diseases are life-long conditions that can cause tumors to grow inside the brain, spinal cord, organs, skin, and skeletal bones.
Neurogenic Bladder
Detailed information on neurogenic bladder, including complications, causes, symptoms, diagnosis, and treatment
Neurological Conditions
Detailed information on neurological disorders in children, including headaches, head injury and seizures/epilepsy