This article will talk about the science behind many of the common cancer treatments today.
Date Published: 10/5/25
Introduction
Cancer is a complex disease that arises when cells grow uncontrollably, forming tumors and potentially spreading to other parts of the body. Over the years, scientists and doctors have developed a variety of treatments to combat cancer, each targeting different aspects of the disease. Understanding these treatments sheds light on the ongoing fight against cancer.
Surgery: Removing the Source
Surgery is often the first step in treating solid tumors. By physically removing cancerous tissue, doctors aim to eliminate the source of the disease. In many cases, surgery is combined with other treatments to ensure that any remaining cancer cells are destroyed. Though highly effective for localized cancers, surgery isn’t always possible if the cancer has spread extensively.
Chemotherapy: Attacking Cells
Chemotherapy uses powerful drugs to kill rapidly dividing cells. Since cancer cells divide more quickly than most normal cells, chemotherapy targets them directly. However, this treatment also affects other rapidly growing cells, such as those in hair follicles and the digestive tract, leading to side effects including hair loss, nausea, and fatigue. Chemotherapy is often used in combination with surgery or radiation to reduce tumor size or kill lingering cancer cells.
Radiation Therapy: Focused Energy
Radiation therapy uses high-energy rays to destroy cancer cells. By directing radiation at a specific area, doctors can damage the DNA of cancer cells, preventing them from growing and dividing. This treatment is especially useful for targeting tumors that are difficult to reach with surgery or for shrinking tumors before surgical removal. While effective, radiation can also harm nearby healthy tissue, leading to side effects such as skin irritation and fatigue.
Immunotherapy: Boosting the Body’s Defenses
Immunotherapy is a newer approach that harnesses the body’s immune system to fight cancer. Normally, the immune system detects and destroys abnormal cells, but cancer cells can evade detection. Immunotherapy drugs help the immune system recognize and attack these cancerous cells. This treatment has shown remarkable success in certain cancers, like melanoma and lung cancer, and continues to be a promising area of research.
Targeted Therapy: Precision Medicine
Targeted therapy focuses on specific genes, proteins, or pathways that cancer cells use to grow. Unlike chemotherapy, which attacks all rapidly dividing cells, targeted therapies aim directly at cancer’s unique characteristics. This precision reduces damage to healthy cells and minimizes side effects. Personalized medicine — tailoring treatment based on a patient’s genetic makeup — has made targeted therapies increasingly effective.
Conclusion
Cancer treatment has come a long way, with each method offering unique benefits. In many cases, doctors combine multiple treatments to create personalized plans tailored to the patient’s type and stage of cancer. Ongoing research continues to improve existing therapies and develop new ones, offering hope for more effective treatments and, ultimately, a cure.
Works Cited
"Types of Cancer Treatment." National Cancer Institute, https://www.cancer.gov/about-cancer/treatment/types.
"Cancer Treatment: Types, Options & What To Expect." Cleveland Clinic, https://my.clevelandclinic.org/health/treatments/cancer-treatment.
"Treatment For Cancer | Cancer Treatment Options." American Cancer Society, https://www.cancer.org/cancer/managing-cancer/treatment-types.html.
"Cancer treatment." Mayo Clinic, https://www.mayoclinic.org/tests-procedures/cancer-treatment/about/pac-20393344.
"Cancer treatments: MedlinePlus Medical Encyclopedia." MedlinePlus, https://medlineplus.gov/ency/patientinstructions/000901.htm.