In normal adults, stool color is more commonly yellow, yellowish brown or brown. If the patient has abnormal stool color such as red, black or off-white, it may suggest the presence of related diseases.
1. Red: Blood in the stool or drops of blood after stool should be considered for the possibility of hemorrhoids and colorectal tumors. If there is obvious change in the shape of stool, there is the possibility of rectal cancer; if the stool is paste-like mixed with red, acute hemorrhagic enteritis or amoebic enteritis should be considered.
2. Black: tar-colored stool is a typical symptom of upper gastrointestinal bleeding, which commonly includes gastric and duodenal bleeding. The blood undergoes chemical changes in the intestines, making the stool black. Sometimes eating duck blood or iron can also cause black stools, this situation is not to worry.
3. Grayish-white: If the stool is like clay and the skin is yellow, it may be due to biliary obstruction caused by various diseases, resulting in bile stasis and bilirubin can not be discharged with the stool, resulting in grayish-white stool.
When abnormal stool color occurs, it is recommended to consult a doctor in time, follow the doctor’s instructions for further examination, clarify the cause with the doctor’s help, and carry out targeted treatment or therapy.