Myasthenia gravis (MG) is an acquired autoimmune disease mediated by acetylcholine receptor antibodies, cellular immune-dependent, complement-involved, and primarily involving acetylcholine receptors in the postsynaptic membrane of the neuromuscular junction. The average incidence is about 7.40/million people/year, with a prevalence of about 1/5,000. MG can occur at all ages, with a bimodal incidence, with a higher incidence in women than in men before the age of 40 (3:7 male:female), a comparable incidence in men and women between the ages of 40 and 50, and a slightly higher incidence in men than in women after the age of 50 (3:2 male:female). After the age of 50, the incidence is slightly higher in men than in women (male:female 3:2). (1) Diagnosis (1) Clinical features: certain specific transverse muscle groups show fluctuating and easily fatigable muscle strength, usually the extraocular muscles are most frequently involved, muscle weakness symptoms are light in the morning and heavy in the evening, aggravated by continuous activity and relieved by rest; (2) Pharmacological features: after subcutaneous injection of the cholinesterase inhibitor neostigmine methosulfate, the relative score is calculated by the single absolute score when the improvement is most significant, and each single relative score (3) Electrophysiological features: low-frequency repetitive frequency stimulation (RNS) can cause more than 50% amplitude depletion; broadening of “tremor” measured by single-fiber electromyography (SFEMG) with or without block; (4) Serological features: 80%-90% of MG patients have detectable serum fibrillation. of MG patients have detectable AChR antibodies or anti-MuSK antibodies in the serum. 2, treatment (1) to standardize the treatment of modern medicine, such as hormones or neostigmine, etc., to gradually reduce the dosage under the guidance of doctors, do not stop the drug on their own, discontinue treatment; (2) the main use of Chinese medicine treatment methods, to supplement Zhong Yi Qi Tang plus reduction, Chinese medicine to Huang Qi mainly; acupuncture can quickly reduce the patient diplopia, eye muscle paralysis and other symptoms! Note: (1) Patients with negative serological examination cannot exclude MG; (2) To patients with suspected MG, a CT examination of the thymus must be done to see if it is combined with thymic hyperplasia or thymoma; (3) Patients must adhere to treatment and believe that they can return to normal living and working conditions, which takes about six months to a year.