The endometrial tissue that grows outdoors the uterus nonetheless behaves like regular endometrial tissue, thickening and shedding in response to hormonal adjustments through the menstrual cycle, explains the Mayo Clinic. Nonetheless, as a result of it’s outdoors the uterus, the blood and tissue shed throughout menstruation haven’t any solution to exit the physique, resulting in extreme ache throughout a interval.
Endometrial tissue may develop on or close to nerves, which might trigger power ache alerts to be despatched to the mind, says a 2021 research printed within the journal FASEB Bio Advances. Moreover, the scarring occuring with endometriosis may cause ache. In different phrases, because the endometrial tissue grows and breaks down, it could possibly type scar tissue that may bind organs collectively, inflicting ache, per NOVA IVF Fertility.
In some circumstances, endometriosis may cause pelvic flooring dysfunction. It happens when the pelvic flooring muscle tissues begin tensing up as a result of power pelvic ache they’re experiencing, as per the Very important Well being Endometriosis Middle.