Definition
To have the presence of blood in one's urine or feces.
便血
If you notice that you are passing blood, please seek medical attention immediately.
如果你注意到你正在便血，请立即就医。
He was sent to the hospital for further examination due to passing blood in his stool.
他因大便带血而被送往医院进行进一步检查。
If the passing of blood continues, further diagnosis is necessary.
如果便血情况持续，需要进行进一步诊断。