Gynaecology & Obstetrics General 1ab68cdf True regarding endo-metriosis associated dysmenorrhea is all except A More severe than primary dysmenorrhea. B Occurs 24 to 48 hours after start of menses. C Less responsive to NSAIDs. D Deep infiltrating endometriosis correlates with severity of dysmenorrhea. High-Yield Explanation Endometriosis associated dysmenorrhea typically precedes menses by 24 to 48 hours.