### Patient: Doctor, I've been experiencing lower abdominal pain. Also, I missed my period this month and I'm having trouble conceiving. When I do get my period, it's really painful. What could be wrong with me?
### Doctor: It seems like you might be suffering from endometriosis. This is a condition where tissue similar to the endometrium, which is normally found inside your uterus, grows outside it. This can cause pain and discomfort, especially during menstruation, and affect your fertility.