Health Conditions Starting With N — Research & Medical Insights

A neurological disorder causing sudden muscle weakness and excessive daytime sleepiness.

Fat accumulation in the liver unrelated to alcohol use, linked to obesity and metabolic syndrome.

Peripheral nerve damage causing numbness, pain, and weakness in hands and feet.

Fungal infection of the fingernails or toenails causing thickening and discoloration.

Soft, painless growths in the nasal passages that can obstruct breathing.

Cancer arising in the upper part of the throat behind the nose.

Myopia — difficulty seeing distant objects clearly.

A rapidly progressing flesh-eating bacterial infection requiring urgent surgery.

Yellowing of newborn skin from elevated bilirubin, usually resolving spontaneously.

Inflammation of the kidneys from infection, autoimmune disease, or medications.

Kidney stone disease — mineral deposits forming in the kidneys.

Kidney damage causing heavy protein loss in urine, swelling, and high cholesterol.

A cancer that develops from nerve tissue, most commonly affecting young children.

Inherited disorders causing tumors to form on nerve tissue throughout the body.

A rare life-threatening reaction to antipsychotic medications with fever and rigidity.

Dependence on nicotine from tobacco products with physical and psychological components.

Difficulty seeing in low light, often from retinal disorders or vitamin A deficiency.

Heavy sweating during sleep, with causes ranging from menopause to serious illness.

A rare bacterial infection affecting lungs, brain, or skin, mainly in immunocompromised patients.

A diverse group of lymphatic system cancers excluding Hodgkin lymphoma.

A genetic disorder causing distinctive facial features, short stature, and heart defects.

A highly contagious virus causing sudden vomiting and diarrhea.

Epistaxis — bleeding from the nasal passages, usually minor and self-limiting.

Involuntary rhythmic eye movements that can affect vision.

Sharp, shooting pain along the path of a nerve.

A rare disorder causing skin and organ thickening in patients with severe kidney disease.

Coin-shaped patches of itchy, inflamed skin, often triggered by dry skin.

Low neutrophil count increasing infection risk, common during chemotherapy.

A rare severe viral infection with respiratory and neurological symptoms.

A severe form of fatty liver disease with inflammation that can progress to cirrhosis.

Loss of bladder control from nerve damage affecting spinal cord or brain.

An autoimmune disorder affecting the optic nerves and spinal cord.

Episodes of screaming and intense fear during sleep, most common in children.