Myasthenia gravis affecting respiration can be cured because myasthenia gravis can improve after treatments such as oral medication or plasmapheresis. Another possibility is myasthenia gravis concurrent with a myasthenic crisis, which has various forms, causing respiratory difficulties. At this point, symptomatic treatment is required, including the use of ventilators, intubation, and in severe cases, a tracheotomy. After the critical period on the ventilator passes, respiratory function can improve or the myasthenia can ameliorate.