why was rudolph's nose red

Rudolph's nose was red because he was embarrassed! When Santa and the other reindeer laughed at his nose, he felt so sad and alone. But he soon realized that his unique nose could be a gift, and he used it to guide the sleigh through the stormy Christmas Eve sky. Rudolph's red nose was the brightest star in the sky that night, and he became a hero to all the children who saw him.