Endometriosis as Cyclical Displacement Accumulation: Chronic Pain as Imposed D(ξ), Diagnostic Delay as Iatrogenic Φ Accumulation, and the Multi-Domain Cost of Invalidation

We apply the Displacement Framework to endometriosis, formalizing the pelvic ground state S°_pelvic as a five-component baseline (comfortable menstruation, pain-free movement, functional sexual activity, normal bowel and bladder function, reproductive capacity) that endometriosis systematically disrupts. The cyclical nature of the disease means D(ξ_pelvic) is imposed and renewed with every menstrual cycle, producing relentless Φ accumulation.

Nine formal propositions are derived covering: S°_pelvic as the five-component pelvic functioning baseline, endometriosis as cyclically imposed D(ξ_pelvic) renewed each cycle, diagnostic delay as iatrogenic Φ accumulation — the 7–10 year average diagnostic delay functions as a second displacement imposed by the medical system, medical gaslighting ('pain is normal,' 'it's in your head') as epistemic D(ξ_epistemic) compounding physical D(ξ_pain), infertility as secondary D(ξ_reproductive) from endometriosis-induced structural damage, central sensitization as basin deepening (pain becoming partially independent of active disease), multi-domain Φ compound structure across physical, relational, occupational, and psychological domains, laparoscopic excision as the only return path addressing root cause, and endometriosis-knowledgeable providers as a critical and geographically uneven landscape feature.

The normalization of menstrual pain as a cultural wrong attractor — the primary driver of diagnostic delay — is analyzed as a structural landscape factor that traps patients in years of undiagnosed accumulation.