vaginal discharge
Medical and everyday term for physiological discharge; often used in women's health contexts.
Euphemistic or older term for menstruation; in modern Japanese 生理 is more common.
afterbirth; lochia
Refers to postpartum discharge; primarily a medical or midwifery term.
If you are concerned about the amount or color of your vaginal discharge, please see a gynecologist.
In the past, おりもの could refer to menstruation, but it is rarely used that way now.
Postpartum discharge is often called 悪露 (lochia).
panty liner
Usually written in kana; the kanji spelling 下り物 is rare and may be confused with other readings.
Katakana form is occasionally seen in medical or product contexts, but not a standard spelling.
Kanji spelling is rarely used; the kana form is strongly preferred.
Compound of 下り (ori, 'descending') + 物 (mono, 'thing'), literally 'something that comes down'. The exact historical derivation is uncertain, but the term has long been used euphemistically for bodily discharges.