Onchology: This is the study of cancer. Oncology word meaning is mass, bulk & tumor. This is a branch of medicine which deals with tumors (cancer). The one who practices oncology is called an oncologist. Oncology is concerned with the diagnosis of any type of cancer in a person. Onchology is related with therapy like surgery, radiotherapy, chemotherapy or other modalities.

Onchology science is follow-up to cancer patients after his successful treatment. This is a type of palliative care of the patients with terminal malignancies. Onchology ethical questions are surrounding cancer care. Onchology have screening efforts of populations and relatives of the patients in kinds of cancer which are thought to have a hereditary basis, like as breast cancer.