The color of stool after drinking Pu’er tea is usually still yellow. Drinking some Pu-erh tea appropriately can help your health. Usually, drinking Pu-erh tea will not cause the color of the stool to change, so the color of stool after drinking Pu-erh tea is usually still yellow, and yellow is also the normal color of stool. The color of the stool can play a role in reflecting certain diseases. Black stool may be caused by iron supplements, iron-rich green vegetables and other factors, and may also indicate upper gastrointestinal bleeding; blood stool suggests that there may be hemorrhoids, anal fissure, ulcerative colitis and other diseases. If you drink Pu-erh tea after the appearance of abnormal stool color when necessary, it is recommended to go to the hospital for medical attention.