Several factors can lead to galactorrhea. The most common cause is an elevated level of the hormone prolactin, which is produced by the pituitary gland. Conditions such as hypothyroidism, chronic kidney disease, and pituitary tumors can increase prolactin levels. Certain medications, including antipsychotics, antidepressants, and antihypertensives, can also contribute. Additionally, excessive breast stimulation and stress are known to cause or exacerbate the condition.
