Prolactinoma
A prolactinoma is a non-cancerous tumour of the pituitary gland that secretes excess prolactin, the hormone responsible for triggering milk production. It is the most common type of pituitary tumour and affects people across Southeast and East Asia at rates comparable to global figures, though it often goes undiagnosed for years.
Medicine used to treat Prolactinoma
What raised prolactin actually does
High prolactin interferes with the hormones that regulate the reproductive cycle. In women, this typically causes irregular or absent periods, unexpected milk discharge (galactorrhoea), and difficulty conceiving. In men, it can reduce testosterone, leading to low libido, erectile difficulties, and in long-standing cases, bone thinning. Headaches and visual disturbances can occur when a larger tumour presses on nearby structures.
Bringing prolactin back under control
Most prolactinomas respond well to medication that suppresses prolactin production and often shrinks the tumour over time. Cabergoline is the standard first-line agent and is generally well tolerated; it belongs to a drug class that mimics dopamine, the brain’s natural brake on prolactin release. Women being treated for prolactinoma-related fertility or cycle problems may also benefit from broader women’s health support alongside their endocrinologist’s care.
If you notice a persistent milky discharge, sudden vision changes, or severe headaches, see a doctor promptly rather than waiting for a routine appointment.