Answer
Yes, having high levels of the hormone prolactin, a condition called hyperprolactinemia, can cause infertility in both women and men. Prolactin is mainly known for stimulating milk production after childbirth. At SCI Hospital, we explain that if prolactin levels are too high at other times, it can interfere with the normal production of other hormones essential for reproduction. In women, this can disrupt ovulation, leading to irregular or absent periods. In men, high prolactin can lower testosterone, reduce sperm production, and decrease libido. The good news is that this condition is often treatable, which can help restore fertility.
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