The figurative use of 出血 (chūxiě) taps into a deep-seated cultural value in China: thriftiness (节俭, jiéjiǎn). Traditionally, saving money and avoiding frivolous expenses is seen as a virtue. Therefore, a large, sudden expense can feel like a genuine injury or a loss of vitality, much like losing blood. In Western culture, we have similar expressions like “hemorrhaging money” or “bleeding cash.” However, these are often used in more serious contexts, like a business failing or a government budget crisis. The Chinese term 出血 is much more common in everyday, personal life. It has a more informal, complaining, and sometimes humorous tone. A young person might say they're having a “major hemorrhage” (大出血, dà chūxiě) after buying the latest iPhone, a usage that would sound overly dramatic in English but is perfectly normal and relatable in modern Chinese. It's a way of sharing the “pain” of the expense with friends in an exaggerated, lighthearted manner.
The connotation and formality of 出血 depend entirely on the context.
In a medical setting, 出血 is a neutral, formal term used to describe the act of bleeding.
This is the most common usage in daily life among friends, family, and on social media. It describes spending a significant amount of money.