Answer
Hair fall occurs due to the action of chemotherapy and radiotherapy on the rapidly dividing hair follicles.
Work Step by Step
Cancer treatment,namely chemotherapy and radiotherapy are powerful means of destroying rapidly dividing cells.Cancer cells have a high mitotic rate and are preferentially killed by these modalities.However,alopecia or hair fall is the most common side effect associated with cancer therapy due to the action of these agents on the fast multiplying hair follicles.
