Hyperprolactinemia can cause which of the following clinical consequences?

• A. Galactorrhea
• B. Hypertension
• C. Weight gain
• D. All of the above

Answer: (D)

Hyperprolactinemia can affect multiple body systems because prolactin acts on tissues beyond the breast and can influence metabolism and cardiovascular risk. The most direct and common effect is galactorrhea, since high prolactin stimulates milk production in breast tissue even in people who are not pregnant or lactating.

Weight gain can accompany elevated prolactin levels because prolactin can impact energy balance and adipose tissue metabolism; chronic elevation is often seen with conditions like prolactinomas and with medications that raise prolactin, and this weight gain can contribute to broader metabolic changes.

Hypertension can be part of the broader metabolic disturbances that sometimes occur with hyperprolactinemia, particularly when obesity or insulin resistance is present. Additionally, certain prolactin-raising medications are associated with metabolic syndrome features, including higher blood pressure.

Because all of these can be seen with hyperprolactinemia, selecting all of the above is the best choice.