Potassium deficiency may be manifested by weakness of limbs, nausea, abdominal distension, panic attacks, and in severe cases, flaccid paralysis and coma, etc. Prompt medical attention is required, and the cause of the disease should be clarified and then treated under the guidance of a doctor. You can follow the doctor’s instructions to actively treat the primary disease, through oral or intravenous potassium supplementation. Potassium deficiency can lead to abnormalities in various systems of the body. Abnormalities in the musculoskeletal system can lead to weakness of the limbs, and in severe cases, flaccid paralysis; abnormalities in the digestive system can lead to abdominal distension, nausea, and in severe cases, intestinal paralysis; abnormalities in the cardiovascular system can lead to cardiac arrhythmia; abnormalities in the mental system can lead to fatigue, poor mental performance, and in severe cases, coma. Actively treat the primary disease and give potassium-rich food, such as meat, green vegetables, fruits and beans. For those with potassium deficiency hypokalemia, in addition to actively treating the primary disease, potassium should be supplemented in time. Severe hypokalemia requires intravenous potassium supplementation, which should be carried out under doctor’s guidance. Excessive potassium supplementation or too fast potassium supplementation may lead to hyperkalemia, even life-threatening.