What is the MOST common side effect related to endometriosis?

Dysmenorrhea, or painful menstruation, is the most common side effect associated with endometriosis. This condition occurs when tissue similar to the lining of the uterus grows outside the uterus, leading to significant pain and discomfort during menstrual cycles. Many individuals with endometriosis experience severe cramping and pain in the lower abdomen, which is indicative of dysmenorrhea, making it a hallmark symptom of the disorder.

In contrast, while menorrhagia (heavy menstruation) and PMS (premenstrual syndrome) can occur in individuals with endometriosis, they are not as universally experienced or defining for the condition. Constipation can also occur but is more of a secondary effect due to the location of endometrial tissue affecting the surrounding organs and bowels. Dysmenorrhea is particularly significant because it not only reflects the presence of endometriosis but can also severely impact the quality of life for those affected, thus making it the most common and notable side effect related to this condition.