The Endocannabinoid System in Endometriosis-Associated Pain: Mechanisms, Molecular Targets, and Therapeutic Implications

Stone AM, Alexandra M. Stone, Veltre VL, Vanessa L. Veltre, Olivia G. Camp, Camp OG, Mia M Biernat, Biernat MM, Husam M. Abu‐Soud
Reproductive sciences (Thousand Oaks, Calif.) · 2026 · vol. 33(10) , pp. 1891–1906 · doi:10.1007/s43032-026-02201-9 · PMID:42745018 · W7213234748
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This review evaluates the endocannabinoid system as a therapeutic target for endometriosis-associated pain, finding that cannabinoids suppress pain signaling, inflammation, and lesion proliferation through interactions with receptors in endometriotic tissue.

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Abstract

Endometriosis is a chronic gynecological disorder affecting approximately 10% of reproductive-age women, characterized by the ectopic growth of endometrial tissue and severe pain, including dysmenorrhea, chronic pelvic pain, dyspareunia, dysuria, and dyschezia. Current treatments are limited in efficacy and associated with significant side effects, underscoring the urgent need for novel therapeutic strategies. The endocannabinoid system (ECS) has emerged as a promising therapeutic target, given its well-established roles in pain modulation, inflammation, and immune regulation. Epidemiological evidence demonstrates that women with endometriosis increasingly use cannabis for symptom self-management, yet the underlying mechanisms remain poorly characterized. This review integrates preclinical and human evidence to comprehensively evaluate the mechanistic basis of cannabinoid efficacy in endometriosis-associated pain. Evidence from in vitro studies and animal models indicates that cannabinoids target three main mechanisms of endometriosis-associated pain, including inflammation, nociceptive signaling, and lesion proliferation. Cannabinoids suppress pain signaling and sensitization by interacting with cannabinoid and non-cannabinoid receptors expressed in endometriotic lesions. Cannabinoids attenuate endometriosis-induced inflammation by inhibiting proinflammatory cytokine signaling and reducing the release of inflammatory mediators by mast cells and peritoneal macrophages. Cannabinoids also exert antiproliferative effects in endometriosis models, thereby suppressing the growth of endometriotic lesions. In conclusion, the ECS is a promising therapeutic target for endometriosis-associated pain, as it regulates nociception, inflammation, and proliferation. These promising findings highlight the potential therapeutic benefits of cannabinoids for endometriosis-associated pain, warranting the need for clinical trials to evaluate the safety and effectiveness of cannabinoid therapies in endometriosis.

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MeSH descriptors

Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Cannabinoids Endocannabinoids

Citation neighborhood

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References (100)

SciLite annotations

chemicals 7
endocannabinoid endocannabinoid cannabinoid cannabinol cannabinol cannabinoid cannabinol
organisms 2
human rodents

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