Suffering is a theme throughout Nietzsche's writings. His views are often controversial and challenging. He explores ways of understanding suffering not as an 'objection to life', but as something that can enhance life. This Element examines Nietzsche's views on suffering from different angles: his early claim that the representation of suffering in the art form of tragedy enabled the ancient Greeks to affirm life, his analysis of cruelty as an expression of will to power, and his critique of 'the morality of compassion' which he claims would impoverish life by removing its suffering. Nietzsche views suffering as necessary for psychological growth and great human achievement. It is neither good nor bad in itself, and its value depends on who suffers and in what context. Although Nietzsche's rhetoric sometimes glorifies suffering and cruelty irresponsibly, his work advances our understanding of suffering by viewing it through different perspectives and affective attitudes.