noun
welt; wale; weal
A raised, red mark on the skin, often long and narrow like an earthworm, caused by a blow, insect bite, or allergic reaction.
蚊に刺されたところがみみずばれになった。
The mosquito bite turned into a welt.
鞭で打たれて背中にみみずばれができた。
He got welts on his back from being whipped.
Rare kanji form with 脹れ instead of 腫れ; it is rarely used.
Compound of みみず (earthworm) and 腫れ (swelling), from the resemblance of the raised mark to an earthworm.