non-specific urethritis
noun/ˌnɒn spəˌsɪfɪk ˌjʊərəˈθraɪtɪs/
/ˌnɑːn spəˌsɪfɪk ˌjʊrəˈθraɪtɪs/
[uncountable] (abbreviation NSU)
(medical)- a condition in which the urethra becomes painful and swollen (= larger than normal). It is often caused by an infection caught by having sex.
非特异性尿道炎（多因性交感染）