Hiccups are caused by spasms in your diaphragm, the large muscle just below your lungs. Some people have chronic hiccups that last for days, weeks, or years. Hiccups happen when your diaphragm ...

As many as 40% of patients with cancer develop hiccups — often unbeknownst to their oncologist. But even if recognized, hiccups may not be treated effectively, according to a national survey of cancer ...