Could you live without your pituitary gland?

Yes with treatment: Yes, with replacement hormones. Such treatment is complex and usually requires careful management by an endocrinologist. But sometimes necessary if it isn't possible to save the pituitary, e.g. after surgery for a tumor in the area.

Yes: Patients with pituitary tumors often require removal of part or all of the pituitary, and are treated with replacement therapy for their endocrine function. These patients typically do reasonably well under the care of their respective surgeons and endocrinologists.

Hormone replacement: Yes, but you will need to be on hormone replacement. The two most critical hormones are cortisol (adrenal) and thyroid. Testosterone or estrogen may need replacement. If the posterior pituitary is removed, DDAVP (desmopressin) will need to be given to regulate water balance. Discuss with an endocrinologist.

Only if: You receive replacement hormones for those organs controlled by the pituitary, such as thyroid, adrenal, ovaries or testicles, etc.