What types of social problems do obese adolescents face?

Depends. We all face social problems and there are no particular social problems associated with being obese. However people may face social problems based on a lot of factors like being obese or too thin, too tall or too short, white, black, yellow or red and on and on. Any of these can become a problem or not depending on how we view ourselves and cope with these factors relative to those around us.