When patients present with hypokalemia, the first symptoms often include significant muscle weakness and episodic flaccid paralysis. Additionally, there may be a decrease in the stress tolerance of cardiac myocytes, leading to arrhythmias or an increased heart rate. Hypokalemia can also cause damage to the renal tubules, leading to a decline in kidney excretion functions. The most crucial manifestation is endocrine disorder, which can lead to kidney failure. The primary treatment for hypokalemia is potassium supplementation. For mild hypokalemia, it is advisable to consume foods high in potassium, such as oranges, bananas, and other fruits and vegetables. In cases of severe hypokalemia, potassium can be administered intravenously or orally, and blood potassium levels should be dynamically monitored.