noun
heat urticaria; thermal urticaria
Medical term for hives triggered by heat, such as hot baths, exercise, or warm environments.
温熱蕁麻疹は、入浴や運動で体温が上がると症状が出ることがあります。
Heat urticaria can cause symptoms when body temperature rises, such as during bathing or exercise.
Compound of 温熱 (heat) and 蕁麻疹 (urticaria). The exact historical derivation is uncertain; the spelling is conventionally associated with the medical meaning.