Non-specificity is a significant concern in cancer treatment for several reasons. Firstly, it can cause collateral damage to healthy tissues, resulting in side effects such as fatigue, nausea, and an increased risk of infections. Secondly, non-specific treatments may not be as effective in eradicating cancer cells, leading to potential recurrence or metastasis. Lastly, the lack of specificity can complicate the monitoring of treatment efficacy.