That's how chemotherapy works. Primarily it just kills cells. Typically it has a more potent effect on faster reproducing cells. Because cancer cells often lack

That's how chemotherapy works. Primarily it just kills cells. Typically it has a more potent effect on faster reproducing cells. Because cancer cells often lack the repair mechanisms and support systems of healthy cells they are sometimes more susceptible to being damaged than healthy cells. That plus the focus on fast dividing cells means that sometimes the cancer cells will die off while your non-cancerous tissues persevere and are able to recover after the end of the treatment. It's also why chemotherapy has its notable side effects though (weakness, paleness, nausea, and hair loss) because hair follicles, the digestive tract lining, and new blood cells are also targeted.