nosebleed; epistaxis
Medical term for nosebleed; in everyday conversation, 鼻血 (はなぢ) is more common.
If the nosebleed does not stop, please see an otolaryngologist.
鼻出血 is the formal medical term doctors use for a nosebleed, whereas 鼻血 is the everyday word people use in daily life.
Compound of 鼻 (び, 'nose') and 出血 (しゅっけつ, 'bleeding').