The Relationship Between the Kidneys and Bowel Movements

Jan 03, 2022 Source: Cainiu Health
Disease description:

Recently, I’ve noticed that my stool has become somewhat black, and I’m experiencing abdominal pain. I’ve previously been diagnosed with kidney stones. Could you please explain the relationship between the kidneys and bowel movements?

Doctor's answer (2)
Dr. Lu Chaohui
Black stool accompanied by abdominal pain is unlikely to be directly related to kidney stones. Kidney stones typically present with urinary abnormalities, such as dysuria (painful urination) or hematuria (blood in the urine). Black stool warrants a routine stool examination to assess for occult blood; this symptom is most commonly attributable to upper gastrointestinal bleeding.