Myasthenia gravis is the most common disorder of neuromuscular transmission. The hallmark of the disorder is a fluctuating degree and variable combination of weakness in ocular, bulbar, limb, and respiratory muscles. This case is about a 36 year-old Japanese woman. She described that she had been diagnosed with Myasthenia Gravis nine years ago and needed wheelchair and a variety of assistive devices to assist her in her daily life. After she carne back to Kaohsiung due to some family factors, she started to receive treatment in our hospital since July 2014. Afater taking some medicine for two weeks, she can freely move with no assistive devices till now.