Final answer:
The side effects of chemotherapeutic treatment for malignancy include thinning of the oral mucosa, ulceration, necrosis, and spontaneous bleeding.
Step-by-step explanation:
The side effects of chemotherapeutic treatment for malignancy include thinning of the oral mucosa, ulceration, necrosis, and spontaneous bleeding. Chemotherapy drugs interfere with cell division in rapidly dividing cells, which includes healthy cells such as the oral mucosa. This leads to damage and side effects in bodily systems that have a high turnover of cells.