A general surgeon is a medical professional who performs surgery on patients. General surgeons typically perform common surgeries and have attended college and medical school to learn the skills needed to perform them successfully. They also care for their patients before and after operations and can give an accurate prognosis after the surgery is complete and the patient has had time to heal.

A hospitalist is a doctor who works only in a hospital setting. Hospitalists care for patients who are staying in the hospital to recover from an illness or a surgery. Most hospitalists are also internists, and many primary care doctors are hospitalists. Some of them also work in subspecialties or have work in other areas early in their careers. Hospitalists coordinate care for patients admitted in the hospital. They play the role of Primary care doctors in hospital settings.

A urologist is a health professional who studies and treats disorders of the urinary tract. Urologists can conduct tests, perform surgery, and help resolve any issues that a patient may be having with urination. Urologists treat the kidneys, ureters, bladder, urethra, and adrenal glands. They can also treat some male reproductive organs that are connected to the urinary tract.