| 月経 | [げっけい, gekkei] (n, adj-no) menstruation; menstrual period; (P) [Add to Longdo] |
| 月経困難症 | [げっけいこんなんしょう, gekkeikonnanshou] (n) dysmenorrhea [Add to Longdo] |
| 月経周期 | [げっけいしゅうき, gekkeishuuki] (n) menstrual cycle [Add to Longdo] |
| 月経前 | [げっけいまえ, gekkeimae] (adj-no) premenstrual [Add to Longdo] |
| 月経帯 | [げっけいたい, gekkeitai] (n) sanitary napkin [Add to Longdo] |
| My menstrual cycle is about every four weeks. | 月経周期は約４週間です。 |