UK Surgeon Dr. Karan Raj recently used social media to differentiate between hemorrhoids and colon cancer symptoms. He explained that bright red blood on toilet paper typically indicates hemorrhoids, while darker blood mixed with stool can be a sign of colon cancer. UK Surgeon Dr. Karan Raj recently used social media to differentiate between hemorrhoids and colon cancer symptoms. He explained that bright red blood on toilet paper typically indicates hemorrhoids, while darker blood mixed with stool can be a sign of colon cancer. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle