Sweating a lot and not supplementing potassium-containing food in time may lead to potassium deficiency, which belongs to the loss of potassium through the skin, in addition to the loss of potassium through the kidneys, such as renal tubular acidosis, acute renal failure polyuria and other diseases, or through the gastrointestinal tract, such as vomiting and diarrhea caused by acute gastroenteritis, ulcers and so on. 1. Loss of potassium through the skin: Sweat contains relatively little potassium, and usually a small amount of sweating does not lead to potassium deficiency. However, if you continue to work for a long time under high temperature, a large amount of sweat will flow out through the skin, which may lead to potassium deficiency. 2. Loss of potassium via kidney: certain renal diseases such as renal tubular acidosis, acute renal failure with polyuria, etc.; or endocrine diseases such as primary aldosteronism, Cushing’s syndrome, etc.; or the use of diuretics such as furosemide and hydrochlorothiazide. 3. Loss of potassium through gastrointestinal tract: gastrointestinal diseases such as acute gastroenteritis, ulcers and other causes of vomiting, diarrhea, etc.; or insufficient intake of potassium, such as picky eating, anorexia and weight loss. There are many reasons for potassium deficiency, and it is important to consult a doctor to identify the cause of potassium deficiency and choose appropriate treatment measures. If there is any discomfort, consult a doctor promptly.