Stool is stool that is not easy to be discharged after being left in the intestine for a long time. If you are often constipated, it is easy to accumulate stool. Shit is discharged in the way of "the waves behind the Yangtze River push the waves before", and no one on the earth can defecate 100% cleanly! The part that has not been discharged can only be pushed out by the "back wave" next time. The part that has not been pushed out is the stool. Therefore, it is necessary to wash intestines regularly. It is very safe to wash your intestines at home and drink stevia black tea to wash your intestines. Taobao.