Medical oncology is a branch of medicine that focuses on the diagnosis and treatment of cancer. Medical oncologists are physicians who specialize in the treatment of cancer using chemotherapy, targeted therapy, immunotherapy, and other medications. They work closely with other healthcare providers, such as surgeons and radiation oncologists, to provide comprehensive care for cancer patients. Medical oncology also involves conducting clinical trials to evaluate new cancer treatments and improve outcomes for patients. Overall, medical oncology plays a crucial role in the management of cancer and helping patients navigate their treatment journey.