Why does a patients behavior change and become difficult to handle?

A patient's behavior may change and become difficult to handle due to various factors, including pain, anxiety, fear, or frustration related to their medical condition. Additionally, side effects from medications or the stress of being in a healthcare environment can contribute to changes in behavior. Cognitive or psychological issues, such as confusion or depression, may also play a role in their responses. Understanding these underlying factors is crucial for providing appropriate care and support.