A sufferer is someone experiencing pain, hardship, or distress. When doctors study a disease, they often refer to people who have it as sufferers, like asthma sufferers or migraine sufferers. The word focuses on the experience of enduring something difficult.

You might read that sufferers of a particular condition face daily challenges, or that a new treatment helps sufferers manage their symptoms. When a natural disaster strikes, news reports describe the sufferers who lost their homes.

A sufferer is someone dealing with ongoing or serious difficulty. Someone with a mild cold probably wouldn't be called a sufferer, but someone dealing with chronic pain or a serious illness would be.

While the word often appears in medical or formal contexts, it applies to any prolonged hardship. People can be sufferers of injustice, poverty, or persecution. The word emphasizes that these aren't brief annoyances but real struggles that affect someone's life in meaningful ways.