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News|Videos|October 1, 2026
Radiation Oncologist Answers Top Questions About Radiation Therapy
Author(s)Spencer Feldman
Fact checked by: CURE staff
Dr. Nitin Ohri explains how radiation treats cancer, how often treatment is needed, common side effects and how to tell if radiation is working.
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In this episode of Cancer Search Bar, Dr. Nitin Ohri, a radiation oncologist and professor of radiation oncology at Montefiore Einstein Comprehensive Cancer Center, answers some of the most-searched questions about radiation therapy. He explains how radiation damages the DNA of cancer cells so they die when they try to divide, and why treatment schedules can range from a single session to daily treatments over several weeks. Dr. Ohri also discusses side effects, how care teams track whether radiation is working through scans, physical exams or blood tests like PSA, and why staying active during treatment may help reduce side effects and improve outcomes.
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