Hi Madam!I can understand the extreme abdominal pain
you are suffering from during menstuation along with constant lower backache
. The endometrial thickening of 1.5cm is normal if you got it done in post-ovulatory phase. Many women are advised hystrectomy if they have severe endometriosis
as these patients are hopeful of gaining pain relief.But implants of endometriosis can be found all over the pelvic cavity
, so removal of utreus and ovaries will leave behind some of the disease and even with expert surgical intervention microscopic implants may be left behind. Secondly such women will be prescribed the hormone replacement
therapy(HRT) for years together which can flare up the disease again because of estrogen component of HRT.So discuss this with your attening doctor if she can put you on some medication.Wish you good luck!