I have been banging on to DH that this is a feminist issue since I had a 3b tear giving birth to DS.
I was in no way prepared for the reality of this type of birth injury (altogether I have been amazingly lucky to heal very well and have no continence issues).
The shame which surrounds women's genitals and the cult of 'natural birth' leads to a culture of silence around birth injuries. I think there is also something around the difficulty in getting medical attention for eg pain during sex - you have to fight against the idea that a woman who has chosen to be a mother is no longer a sexual being.
Add in that these problems can get worse with age, so that we are talking about older women who might want to enjoy penetrative sex, and you also have to fight against ageism.
I'm sure others will be much more coherent in their analysis but I agree a millionty percent that it is a feminist issue.
for those who are suffering