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Physiologic research on radial and longitudinal pressure variation within the anal canal
Distinguishing a routine post-sex ache from a serious ( or deeper injury) hinges on the quality and duration of pain, visible bleeding or discharge, and functional consequences such as worsening pain ...
Published anatomical research and mainstream summaries converge on a similar picture: an unstimulated resting vaginal length commonly reported around 6–8 cm and an aroused, elongated vaginal canal oft...
No high‑quality longitudinal studies specifically tracking anal sphincter pressures over time in people who practice receptive anal intercourse (RAI) were identified in the available reporting; the mo...