Complications of myasthenia gravis are treatable, but some can be life-threatening.



Myasthenic crisis
Myasthenic crisis is a life-threatening condition, which occurs when the muscles that control breathing become too weak to do their jobs. Emergency treatment is needed to provide mechanical assistance with breathing. This might include the use of a respirator. In individuals whose respiratory muscles are weak, infection, fever, a reaction to medication, or emotional stress can trigger a crisis. Medications and blood-filtering therapies help people recover from myasthenic crisis, so they can again breathe on their own. 

 

Read more on Myasthenic crisis?
 

• Review research paper- Oxford Journal   Link
• ​Myasthenic crisis: Guidelines for prevention and treatment  Link
• Myasthenic crisis :- Clinical features, complications and mortality  Link 



Thymus tumors
About 15 percent of the people who have myasthenia gravis have a tumor in their thymus, a gland under the breastbone that is involved with the immune system. Most of these tumors are noncancerous.



Other disorders

People who have Myasthenia gravis are also more likely to have the following problems:



Underactive or overactive thyroid. The thyroid gland, which is in the neck, secretes hormones that regulate your metabolism. If your thyroid is underactive, your body uses energy more slowly. An overactive thyroid makes your body use energy too quickly.

Pernicious anemia. This is a condition in which vitamin B-12 is not properly absorbed from the diet, leading to anemia or neurological problems.