Thanks for contacting healthcare magic. You have problem of burning sensation in anus that may be because of internal or external hemorroid problem. Hemorroids are bleed while excessive straining at toilet. Proper anorectal examination is helpful for diagnosis. Ulcerative colitis may cause blood in stool problem and mucus secreation present. Proper history give exact idea. Colonoscopy examination can done for further diagnosis. In your urine report there is more pus cells that indicate infection. Urinary tract infection may cause burning sensation during urination. After culture test start antibiotics course under doctor s suggestion. Consent a gastroenterologist for further diagnosis. I hope my guidance is helpful to you. Take care. Thank you.