Blood in stool & blood with stool has many reasons. So you should first consult a ayurvedic physician. He will examine you systemically & locally. Piles, Fissure, Colitis, Ulcerative colitis and many more conditions results in blood in stool .so in that case patients may suffer blood in stool with other symptoms .Too much spicy food, Fast food may aggravate the symptoms. So you should consult first a doctor .Colonoscopy, stool routine with occult blood like investigation also useful for diagnosis