Explain about the Radiation Therapy?

Radiation therapy is one of the options for the treatment of various tumors. During the administration of radiation patients experience acute radiation toxicity. This toxicity is manifested as nausea, vomiting and diarrhoea. This type of toxicity will subside usually within weeks of ending the radiation therapy (RT). Chronic, late gastrointestinal complications occur and may cause major morbidity and mortality. After 2 to 3 weeks of RT, abdominal cramping and watery diarrhoea may occur. Weight loss is common.