I just wanted to add here that abuse is not the number one reason why a person has an aversion to sex. there are many cultures that hold the belief system that sex is bad, sex is wrong sex is something to be feared. people raised in these cultures will naturally have views about sex that can affect their relationships and life to the point where they avoid sexual situations, in some cultures the culture laws even ensure that sex is something to be feared\avoided\... some take it so far as to use medical procedures on genitals to ensure a disinterest\fear\hatred\phobia about sex and genitals.

i know some one who is from another country where their belief system is that all women and children undergo a medical procedure to ensure sexual disinterest, by ...american.... standards what they do is considered abuse but by that cultures laws it is not abuse, its how they control sexually transmitted diseases and other health issues, ensure their women remain virgins,

I also know a few people who have this problem simply because their religions preaches abstinence, no sex until marriage otherwise they wont go to their higher power upon death....

I also know many who know someone who had a bad situation for their first time therefore because of their friends \family experiences with sex they develop a problem with it.

sure someone who has been abused may have this problem where they hate fear avoid sex but I know many who go the other way too where they seek out sex because they have been abused. one of the common symptoms of sexual abuse is seeking out sex, re enacting sexual abuse.

my point is that most times when a person has a sexual problem it is not because they have been abused and are repressing it. there are many less traumatic reasons.