Gynaecology & Obstetrics 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. 💡 Explanation True regarding endo-metriosis associated dysmenorrhea is all except ✓ Correct Answer: B. Occurs 24 to 48 hours after start of menses.