Cancer Symptom Data From Multiple Treatment Centers

Background: \- Cancer and cancer treatments can cause symptoms and side effects. Pain, fatigue, and emotional distress are three common symptoms. Accurate reporting of these symptoms can improve treatment methods and outcomes. Even though symptom reporting is important to treatment, there is no method to collect and compare patient data from multiple cancer care centers. Researchers want to develop a method for collecting cancer patient symptom information from multiple centers. This method may help improve cancer treatment at hospitals and other care centers. Objectives: \- To collect patient-reported symptom information from multiple cancer care centers. Eligibility: * Individuals at least 21 years of age who were treated for breast or colon cancer in the past year. * Participants will come from one of the participating cancer care centers. Design: * Participants will answer a short questionnaire about their symptoms during cancer treatment. Questions will ask about symptom severity and experiences. Other questions will ask how well the doctors and nurses managed the symptoms. * Participant responses will be compared with other medical and personal information. This information may include cancer type, age at diagnosis, and type of treatment. * Treatment will not be provided as part of this study.