If they have chemotherapy treatment it is common for them to lose their hair.
It not only women it is mens too
Because they need chemotherapy which make tham no hair,
People with cancer often accept chemotherapy as a treatment, which, as the name implies is therapy using chemicals. But there are many side effects to chemotherapy and one is hair loss because the chemo. Destroys the hair follicles along with other good tissues/cells.
It is both for men and women. After they do some therapy their hair naturally falls off.
The treatement for cancer often causes hair loss in both men and women and children.