Social movements can significantly impact public policy reform by raising awareness about social issues and mobilizing public support. These movements often initiate grassroots campaigns that influence legislators to consider new policies or reforms. They can also lead to shifts in public opinion, prompting governments to address demands for change to maintain legitimacy. Additionally, social movements may leverage media platforms to amplify their messages, thus putting pressure on policymakers. Overall, successful movements can translate their collective power into tangible policy changes that reflect the values and needs of society.