Most side effects are temporary and resolve when treatment ends. Few medications cause permanent problems. In general, chemotherapy tends to also effect normal body tissues like the bone marrow and hair. These similar tissues are very active. Active tissue, normal, and cancerous are sensitive to chemotherapy.
Normal tissue is usually able to completely recover from the effects of chemotherapy.
Cancerous tissue is usually not able to recover. The following are common problems experienced by people undergoing chemotherapy. However, not all medications used for chemotherapy will cause these problems. Bone marrow suppression. The bone marrow is very active, producing components of the blood continuously.