1.
redness; erythema; reddening of the skin
Abnormal redness of the skin caused by inflammation, irritation, allergy, or infection. A medical term used in clinical descriptions and pharmaceutical instructions.
注射部位に発赤が見られる。
Redness can be seen at the injection site.
発赤や腫れがあれば医師に相談してください。
If you notice redness or swelling, please consult a doctor.
アレルギー反応で皮膚に発赤と痒みが出た。
An allergic reaction caused redness and itching on the skin.
A medical term frequently seen in clinical reports, drug information leaflets, and patient instructions. Often listed alongside other symptoms like 腫脹 (swelling), 疼痛 (pain), and 発熱 (fever). Common collocations: 発赤が見られる (redness is observed), 発赤を伴う (accompanied by redness). In everyday language, 赤み (redness) or 赤くなる (to become red) are more common.