Nail avulsion (traumatic removal of nail) Description Traumatic removal of the finger nail. The injury can have other associated injuries, such as a nail bed lace…
Nail bruise (subungual hematoma) Description A bruise (hematoma) that develops under the fingernail after trauma to the finger. Bruises develop when smal…
Nail laceration (nail bed cut) Description A laceration that involves the nail and the nail bed underneath. …
Nail contusion (swelling of finger and nail) Description A blunt injury to the finger can result in pain and swelling of the nail and finger. If no blood develops un…
Narcolepsy (uncontrollable sleeping) Description An uncommon sleep disorder characterized by episodes of falling asleep at any time and with little warning. …
Narcotic (morphine, heroin) abuse You may find this interesting Description Narcotic abuse can involve illegal opiates such as heroin or from…
Narcotic (morphine, heroin) overdose Description A life threatening condition where too much narcotic is taken resulting in decreased breathing and if untrea…
Nasal cancer (tumor) Description Cancer involving the nose and inside the nose. Cancer can be slow or fast growing. Rapidly growing cancers c…
Nasal foreign body (unnatural object in the nose) Description A foreign substance in the nasal cavity. It occurs most often in children when they put an object in their n…
Nasal fracture (broken nose) Description Fractures of the nose are common and represent 40% of all facial fractures. Proper treatment can preserve fu…
Nasal septum deviation Description The nasal septum separates the two sides of the nose. A deviated septum is the movement of the tissue betwee…
Nasal polyps (growths) Description Non-malignant growths in the nasal cavities. The polyps consist of inflamed nasal mucosa. They are usually i…
Nasopharyngeal carcinoma (tumor) Description The nasopharynx is the passage which connects the nose with the throat. Cancer can be slow or fast growing. …
Nasal trauma (injury) Description Traumatic injury to the nose is common, with fractures and nose bleeds being the most frequent injuries. The…
Near drowning Description Defined as a person almost dying because they were underwater and unable to breathe. The official definition…
Nearsightedness (myopia) Description Nearsightedness is the difficulty seeing distant objects. It can be an inherited disorder and is caused by a…
Neck trauma (injury) Description The neck contains many important and vulnerable structures. Trauma can be blunt from a motor vehicle acciden…
Necrotizing fasciitis (life-threatening infection) Description A rare and life threatening bacterial infection that involves the skin and the soft tissues beneath it. The …
Necrotizing enterocolitis (NEC) Description Necrotizing enterocolitis (NEC) is the most common gastrointestinal emergency in premature newborns. It is …
Necrotizing ulcerative gingivitis (NUG) Description Necrotizing ulcerative gingivitis (NUG) is a condition affecting the gums that is caused by a bacterial infe…
