Rectal bleeding
You may notice red blood in your stool or simply on the toilet paper after wiping. Or your stool may be dark, caused by blood that has been digested in your GI tract. “Rectal bleeding can be caused by the act of passing stool, or without a stool or not,” says John Kisiel, MD, a gastroenterologist at the Mayo Clinic. However, rectal bleeding could also be caused by hemorrhoids or anal fissures. Either way, best to call your doctor if you notice blood in your toilet.
Involuntary weight loss
“Tumors may cause you to lose appetite, but they also alter your metabolism,” says Dr. Kisiel. Doctors aren’t sure exactly why tumors alter metabolism chemicals in your body, but they suspect that your body’s metabolism resources are often diverted to fight the tumor.
