Hypokalemic periodic paralysis is mainly due to the peripheral weakness of the patient when the blood potassium falls below 3.5 mmol/L. In this case, the fundamental treatment for the disease is to replenish the blood potassium. For mild symptoms, oral medications such as potassium citrate and potassium chloride extended-release tablets can be taken. If the symptoms are more severe and the blood potassium is severely low, intravenous potassium chloride injections are required. Low potassium periodic paralysis, with the possibility of recurrence, requires identification of its root cause for eradication. 1. Pulmonary CT examination can be improved to clarify whether there is a thymoma, and if a thymoma is found, surgical treatment is required. 2. Thyroid ultrasound and nail function and other examinations can be improved to clarify whether there is low potassium caused by thyroid disease. 3. Whether the patient has long-term poor eating, long-term diarrhea and other gastrointestinal symptoms, resulting in Low blood potassium.