No. It really depends on the type of chemotherapy, frequency of the chemotherapy. Patients can receive a lower dose of chemotherapy when undergoing radiation for cervical cancer, and often patients do not lose all their hair. Some patients still will lose their hair regardless of what an oncologist does. If this is a concern for you i would encourage a discussion with your oncology physician.
No. Not everyone loses their hair with cisplatin. You may get thinning. Hope this helps.