Traditional treatments for cancer

Understanding how cancer is treated involves looking at three traditional pillars of care, each attacking the disease in a fundamentally different way. The first approach is surgery, which acts as a direct physical fix for localized disease. If a cancer presents as a solid lump and has not yet spread to other parts of the body, a surgeon can physically cut the tumour out. This remains one of the most immediate and effective methods for removing cancer cells entirely from a specific area before they have the chance to migrate.

When cancer requires a body-wide approach, chemotherapy—often simply called “chemo”—is used as a powerful cell stopper. This treatment relies on potent medications that travel through the entire bloodstream, making it a systemic therapy capable of targeting cancer cells wherever they may be hiding. Chemo works by killing cells that multiply at an abnormally fast rate. Because cancer cells grow rapidly, they are highly vulnerable to these drugs.

However, because certain healthy cells in the body, such as those in the hair follicles and stomach lining, also multiply quickly, the treatment inadvertently affects them as well, leading to common side effects like hair loss and nausea.

Complementing these approaches is radiotherapy, which functions as an invisible beam to target disease with high precision. Instead of treating the whole body, radiotherapy uses high-energy X-rays or specialized radiation beams to blast cancer cells in one very specific, localized spot. The radiation works by directly damaging the DNA inside the cancer cells, destroying their genetic blueprints so they can no longer grow, divide, or survive.

Over the last two decades, oncology has shifted dramatically from an aggressive, one-size-fits-all approach to highly precise, personalised care designed to destroy cancer cells while maximising a patient’s quality of life.

The most significant driver of this shift has been the rise of targeted therapies and antibody-drug conjugates. Unlike traditional chemotherapy, which indiscriminately attacks all rapidly dividing cells and causes severe systemic trauma, these modern therapies are engineered to identify specific genetic mutations or proteins unique to cancer cells.

By using monoclonal antibodies as biological GPS systems, treatments can deliver toxic payloads directly inside the tumour itself, sparing healthy tissue and preventing the classic, debilitating side effects like total hair loss and extreme bone marrow suppression.

In tandem with these molecular strategies, the mainstream adoption of immunotherapy has revolutionised the patient experience by leveraging the body’s own immune system. Checkpoint inhibitors unmask cancer cells so the body can fight them naturally; while this approach carries its own unique risk of inflammatory side effects, it entirely bypasses the severe nausea and immune depletion associated with cytotoxic drugs.

When physical destruction of a tumour is required, radiation therapy has undergone a parallel evolution. The transition from broad radiation beams to ultra-precise technologies like Intensity-Modulated Radiation Therapy and Proton Beam Therapy allows oncologists to sculpt radiation to the exact three-dimensional shape of a tumour. Proton therapy, in particular, stops precisely at the tumour site without delivering a damaging exit dose to the healthy organs sitting directly behind it.

Finally, the day-to-day reality of undergoing treatment has been quietly transformed by massive leaps in supportive care. Next-generation anti-nausea medications and advanced growth factors that stimulate white blood cell production have effectively tamed some of the most dreaded consequences of oncology regimens.

Severe, unmanageable vomiting and emergency hospitalisations due to febrile neutropenia, the most common side effect of chemotherapy, are vastly less common today than they were twenty years ago. Febrile neutropenia is the development of fever, often with other signs of infection, due to an abnormally low number of a specific type of white blood cell in the blood.

By treating cancer based on its precise genetic profile and pairing it with sophisticated symptom management, modern medicine has managed to turn many aggressive malignancies into manageable, chronic conditions while preserving a patient’s dignity and day-to-day functionality.

In the next section, we will explore other new developments in treatments.