Explain in detail the treatment of cancer.

(N/A) The common approaches for the treatment of cancer include surgery,radiation therapy,chemotherapy,and immunotherapy.
$1$. Surgery: In this method,the tumor mass is surgically removed from the body.
$2$. Radiotherapy: In radiotherapy,tumor cells are irradiated lethally,while taking proper care to protect the normal tissues surrounding the tumor mass.
$3$. Chemotherapy: Several chemotherapeutic drugs are used to kill cancerous cells. Some of these are specific for particular tumors. However,the majority of these drugs have side effects like hair loss,anemia,etc.
$4$. Combination Therapy: Most cancers are treated by a combination of surgery,radiotherapy,and chemotherapy.
$5$. Immunotherapy: Tumor cells have been shown to avoid detection and destruction by the immune system. Therefore,patients are given substances called biological response modifiers,such as $\alpha$-interferons,which activate their immune system and help in destroying the tumor.