Sore limbs after diarrhea may be due to diarrhea caused by electrolyte disorders resulting in sore limbs, may also be due to viral infections resulting in diarrhea with sore limbs, and may be due to gastroenteritis with osteoporosis. Diarrhea can cause a large loss of potassium, sodium and other electrolyte ions in the body, causing electrolyte disorders, which in turn can lead to symptoms of post-diarrheal limb soreness. In addition, viral infections may also lead to the symptoms of diarrhea and limb pain at the same time. If the patient suffers from gastroenteritis and osteoporosis at the same time, the patient may show the symptoms of these two diseases at the same time. Gastroenteritis may cause the patient to have diarrhea, and osteoporosis may cause the patient to have symptoms of limb pain. In addition to the above factors, other causes can also lead to the symptoms of post-diarrhea limb pain, it is recommended to consult a doctor in time to identify the cause and ask the doctor to deal with it.