Saliva and gut sensor-based tests hailed as ‘gamechanger’ for millions of women who can wait years for diagnosis Two tests that can dramatically speed up diagnosis of endometriosis are to be made available on the NHS in England and Wales, in a move hailed as a “gamechanger” for millions of women. One in 10 women of reproductive age are affected by the condition, where tissue similar to that found in the womb lining grows elsewhere, such as the ovaries and fallopian tubes. Symptoms include painful periods, painful bowel movements, pain when urinating and pain during or after sex.