Transform Your Sex Life
Yes. Masturbation can reduce your libido. This can be a real problem if you have a low sex drive to start with.
If masturbation violates your values and you feel guilty about masturbating, then your self-esteem will suffer.
Questions to ask your self:
Does it take away from your relationship with your partner? Does it affect your partner? Does your partner know and approve of your masturbating? Does it lead you to use pornography? Does it cause you to fantasize about others while making love? Do you choose masturbation over lovemaking?
If your answer to one or more of these questions is yes, then masturbation may be affecting your sex life.