Despite advances in cancer treatment, achieving a cure remains challenging due to several factors:
1. Heterogeneity of Cancer Cells: Cancer cells can be highly diverse even within a single tumor, making it difficult for any one treatment to be entirely effective.
2. Drug Resistance: Cancer cells can develop resistance to drugs over time, reducing the effectiveness of treatments like chemotherapy and targeted therapy.
3. Side Effects: The aggressive treatments often required to cure cancer can have severe side effects, impacting the patient's quality of life and limiting the ability to complete the treatment.
4. Metastasis: When cancer spreads to other parts of the body, it becomes significantly harder to treat and cure.
