I am a male of 50years and of recent i noticed white thick discharge from my breast when pressed. what can be happening to me.

Prolactin: This can be galactorrhea. It is caused by an increase in prolactin and can be a symptom of thyroid disease or, much less often,a pituitary tumor. See your doctor and get it checked out.

Breast discharge: Galactorrhea or milk production, is often caused by a high prolactin level or a testosterone deficiency. The thick white tissue debris comes out first. Because there is a 1% chance of breast cancer in males, your physician may also recommend a mammogram, MRI, or U/S to rule that out. Unilateral breast discharge is more worrisome. http://plasticsurgery4u.com/puffy_nipples/male_nipple_discharge.htm