The goal of using robots in medicine is to provide improved diagnostic abilities, a less invasive and more comfortable experience for the patient, and the ability to do smaller and more precise interventions.
Robots are currently used not just for all types of surgeries including prostate surgery, but for hysterectomies, the removal of fibroids, joint replacements, open-heart surgery and kidney surgeries. They can be used along with MRIs to provide organ biopsies.
Robotic surgeries also provide a better work environment for the physician by reducing strain and fatigue. Surgeries that last for hours can cause even the best surgeons to experience hand fatigue and tremors. Robots are much steadier and smoother.