Myasthenia Gravis or MG is a rare neuromuscular disorder that causes muscle weakness. MG occurs when the normal connection between the nerves and the muscles is damaged or broken. Although there is no known cure for myasthenia gravis, correct diagnostic treatment and care can relieve the severity of the symptoms. It can also offer relief to the patients. This uncommon disease mostly affects women under the age of 40 and men older than 60 years.