What is the critical organ often protected during radiation therapy?

During radiation therapy, the skin and other sensitive tissues are often prioritized for protection due to their vulnerability to the effects of radiation exposure. Skin tissues can sustain damage from ionizing radiation, leading to reactions such as erythema (skin reddening), dermatitis, and even long-term effects like fibrosis or less severe conditions. Protecting these areas helps minimize acute side effects and preserve the patient's quality of life during and after treatment.

While the liver, heart, and bones are also important organs that can experience radiation effects, they are not as directly impacted during typical radiation therapy sessions as the skin and soft tissues in the treatment field. Techniques such as field shaping, beam modification, and the use of bolus materials are often employed specifically to minimize skin exposure and protect these sensitive tissues from unnecessary damage.