brain, spinal cord, and nerve disorders
Neuromyelitis Optica Spectrum Disorder (NMOSD)
Symptoms of NMOSD
Neuromyelitis optica spectrum disorder causes inflammation of the optic nerve ( Optic Neuritis ). One or both eyes may be affected. The disorder causes episodes of eye pain and dim, blurred, or lost vision. Days to weeks (sometimes years) later, the limbs are affected. People may temporarily lose sensation. They may have painful muscle spasms, and the arms and legs may become weak and sometimes paralyzed. People may be unable to control the bladder ( Urinary Incontinence in Adults ) and bowels ( Some people have hiccups that will not stop ( Causes ) or nausea and vomiting. In some people, the part of the spinal cord that controls breathing is inflamed, leading to difficulty breathing, which is life threatening. Neuromyelitis optica spectrum disorder progresses differently in each person. As the disorder progresses, people may have brief, frequent, painful muscle spasms. Eventually, blindness, loss of sensation and muscle weakness in the limbs, and bladder and bowel dysfunction may become permanent. 