The exact causes of endometriosis are still unknown, yet some of the possible reasons are listed below-

  • During menses, the endometriosis sheds out of the body through vagina. But, in some cases it flows back into the body causing endometriotic patches.
  • Endometriotic patches can occur in a female baby, even when she is in the womb of the mother
  • Genetical factor
  • If hymen fully covers the vaginal opening, it may result in blood accumulation near the uterine region.
  • Surgery to remove uterus for the surgical delivery of the baby.