Constipation and Cancer. Chemo And Constipation is the common side effect of cancer treatment. Constipation is reported by nearly 50% of patients receiving chemotherapy. Symptoms include hard stools, stomach cramps, bloating, and nausea.
Constipation or trouble passing stool, either caused by surgery, chemotherapy, pain drugs, or other medical issues, can begin as an unpleasant feeling and quickly increase into a painful experience.