Good day. I have a friend who got hit by a car but only came out with bruises but days later started bleeding from his nose. When he went to the hospital he was diagnosed with cautionary clogged artery and was told he only at least 15 years to live. He was also told that the odds of the surgery was 80 to 20 against him. Please could cautionary clogged artery cause nose bleeding and are the chances of the surgery really that low