1Stool containing blood; bleeding from the digestive tract or around the anus that causes blood to appear in feces. It often requires medical examination.
昨日から血便が出るので、今日病院で検査を受けるつもりだ。
I've had bloody stools since yesterday, so I'm going to get checked at the hospital today.
血便が見られた場合は放置せず、消化器科を受診してください。
If you notice blood in your stool, don't leave it untreated — see a gastroenterologist.
軽い痔でも血便が出ることがあるが、必ず原因を確かめる必要がある。
Even mild hemorrhoids can cause bloody stools, but it's important to determine the exact cause.