She was born with a completely longitudinal uterus and vagina, suffered from uterine fibroids, and has been having irregular periods for two years since she had her baby after her pregnancy, and only had a period once every five months. I had been examined for endocrine disorder leading to amenorrhea and high progesterone, and took some hormonal drugs, but I stopped taking them when I got my period a few times a month. Later, I felt a hard lump on the scar of my stomach and went to see a doctor, but the local doctor once felt no hard lump, saying that the uterus is relatively soft and should be normal, it is also possible that the obese stomach is too big to feel, but I myself also feel as if it is cyclical, sometimes more obvious to feel sometimes not, it feels more obvious before and after menstruation to feel the hard lump and pain. I want to know if it is endometriosis, what tests should I take to confirm it? Is it possible to do MR? Yes, if you feel a painful hard lump on the scar of your stomach when you have your period, you can do an ultrasound locally to find out if there is bleeding under the scar.