Doctor, This is a question related to my Father. He is 80. For the last two months, he is complaining that not getting motion freely. Sometimes motion happens once in 4 to 5 days. He finds stomach is loaded but no motion happens. Is there any possibility of problems related to Colorectal cancer. He has adeno carcinoma (Lung cancer)in fourth stage. Is it possible this can influence his digestive system (rectal canal)? Thank you, Sridhara

Summarized question: What are the symptoms and treatment for colorectal cancer?