Dear Members, I have noticed in a study that post orgasmic prolactin increases in normal intercourse four times higher than in an ejaculation from masturbation. This study is supposedly endorsing normal intercourse rather than masturbation. But, I have a question here. High prolactin is associated with gynecomastia. So, are all prolactin surges in the body are bad? That's because post orgasmic prolactin is higher in normal intercourse. But people addicted to masturbation and pornography are more prone to gynecomastia.