Lab marker · Low

Low Prolactin: what it means

A Prolactin result below the normal range is considered low. Here is what a reduced Prolactin can point to, and when it is worth discussing with a doctor.

Reference range: Men <15; non-pregnant women <25 ng/mL; pregnancy normally elevates

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What a low Prolactin can mean

  • Generally not clinically actionable in non-lactating individuals.
  • Postpartum lactation failure — can suggest Sheehan's syndrome.
  • Hypopituitarism — broader pituitary failure.

When to discuss with a doctor

Persistently elevated prolactin with symptoms (irregular periods, galactorrhoea, infertility, headache, visual changes) warrants endocrinology evaluation and pituitary MRI when very high. Mild elevation in the context of medication should prompt review with the prescribing clinician. Always check TSH alongside.

Conditions this can relate to

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Mediora.AI is informational - interpretation, not a diagnosis. A single out-of-range value is common and often benign; always discuss decisions with your doctor.