Stool samples can help doctors diagnose some health conditions. Tips for collecting a stool sample include urinating before collecting the sample and using any tools that the sample kit provides.

It’s common for your stool to change color. You likely have a varied diet, and changes in your diet impact your stool. But yellow stool could also mean one of a number of health conditions. From there ...

Stool is usually brown because of a balance of bilirubin and bile. Some conditions can cause bright yellow or pale yellow poop or diarrhea. Possible causes include dietary factors, stress, celiac ...