What is a common symptom of endometriosis?

Heavy menstrual bleeding is a common symptom of endometriosis. This condition occurs when tissue similar to the lining of the uterus grows outside of it, often causing significant inflammation and pain during menstruation. Women with endometriosis frequently experience heavy or prolonged menstrual periods, known as menorrhagia, due to the disrupted normal functioning of the menstrual cycle and the potential for increased endometrial tissue in locations that aren't normally involved in the menstrual process. This leads to more significant bleeding and can contribute to other symptoms like pelvic pain and cramping, further illustrating the impact of the condition on reproductive health.

The other options do not typically relate to endometriosis; frequent headaches, skin rashes, and shortness of breath are not commonly associated with this particular reproductive health issue, demonstrating the specificity of symptoms linked to endometriosis.