Ten most common symptoms in cancer patients and their distribution by degree of discomfort or frequency (N=832) Rank Physical symptoms Prev - alebc e% Level of distress (%) Not at all A little bit Some what Quite a bit Very much 1 Pain 70.0 1.7 11.9 24.5 27.3 4.6 2 Lack of energy 64.9 1.9 15.6 26.3 19.1 1.7 3 Numbness / tingling 63.9 3.7 18.3 22.1 18.1 1.6 6 Lack of sleep 57.6 2.0 11.9 18.5 21.0 4.2 7 Dry mouth 51.0 1.6 20.9 16.6 11.2 0.7 8 Weight loss 50.5 4.4 20.6 13.9 9.7 1.8 9 Change in food taste 48.9 2.6 14.9 17.4 12.0 2.0 10 Lack of appetite 48.3 1.9 13.1 18.0 13.2 2.2 Psychological symptoms Preva - lence% Frequency (%) Rarely Occasio - nally Frequent - ly Almost constant 4 Worrying 63.6 12.5 31.9 16.5 2.9 5 Feeling sad 59.7 8.5 29.8 19.0 2.0 Comment: Among the 10 most common symptoms in cancer patients, pain is the most prevalent symptom with the highest rate of occurrence (70%) and causing the most discomfort with 31.9% at the quite a bit and very much levels.