Myasthenia gravis is essentially an immunoreactive disease in neurology, primarily caused by immune dysfunction in the body, leading to the production of autoantibodies. These antibodies attack the acetylcholine receptors on the postsynaptic membrane, resulting in corresponding clinical symptoms such as ptosis, diplopia, and general fatigue. The examination of myasthenia gravis mainly includes the following aspects: first, the completion of the Tensilon test, and if the test is positive, myasthenia gravis should be considered; second, the examination should include repetitive nerve stimulation electromyography, and if there is a significant decrement in wave amplitude, this disease should be considered; third, relevant blood tests should be conducted, mainly to check for acetylcholine receptor antibodies, as positive results for these antibodies are important in supporting this diagnosis.