A key link between adenomyosis and endometriosis has been identified by researchers in Sydney, Australia. A study of 103 women being treated for endometriosis found that 91 of the women had at least one indicator for adenomyosis.
Endometriosis is a common condition thought to affect up to 2 million women in the UK mostly between the ages of 25 and 40. Small fragments of the lining of the womb, called the endometrium, are found in other places, most commonly in the abdominal cavity, but they have also been found in more distant parts of the body. Adenomyosis is similar to endometriosis in that it is the growth of endometrial tissue within the muscles of the womb itself.
The link between the two has long been known but it is only now that the degree of connection is beginning to be revealed. What the study has suggested is that women who have been treated for endometriosis who still experience problems conceiving may have additional constraints due to possible problems with the lining of the womb (adenomyosis). This has implications for how such women are treated in the future.
You can read more about the research here: High prevalence of sonographic adenomyosis signs in endometriosis shown.