If you have an injury to any body surface then you are at an increased risk of infection.
Specifically, if you have an injury to the nerve supply of an epithelial surface such as the surface of the vagina then you change the susceptibility of the organ to infection. Instead of occasional infections with disease-causing bacteria you are more susceptible to recurrent infections with less-serious organisms (Straub, 2005). In practical terms a woman has recurrent infections with thrush (Candida albicans), BV (bacterial vaginosis), and other organisms. Women do not catch these infections through sexual activity – but they can be spread by sexual activity. It is therefore important to receive prompt treatment and take advice as to whether your partner should be checked.
In endometriosis specifically women suffer an excess of vulvovaginal and upper respiratory tract infections (Gemmill, 2010). A survey of members of the US National Endometriosis Association raised these findings in this recent publication. There is also considerable contemporary discussion of an increased risk of different forms of ovarian cancer. In the autonomic denervation view there are a number of different forms of endometriosis, it may be that this cancer risk, if it si substantiated, applies to one or other of thes subgroups. Further information is necessary as this discusson as been going on since the 1920′s when first raised by JA Sampson.