The HPV vaccine could help prevent several cancers in men as well as women; so why aren't more parents encouraging their children to get it? Amer Kechli, a pediatrician at associate professor at Temple's School of Medicine, says that fear and lack of information could be a factor. He says that there is no evidence of serious side effects or with increased sexual activity related to getting the vaccine. HPV is completely preventable, and Kechli says that should be what prompts parents to get their children vaccinated.