Delirium is a serious disturbance in a person’s mental abilities that results in confusion, disorientation, and a reduced ability to focus, remember, or pay attention.

It can occur rapidly over a few hours or days, usually due to an underlying medical condition, drug or alcohol use, or withdrawal.

Hyperactive delirium:

This type of delirium is characterized by agitation, restlessness, and disorientation. People with hyperactive delirium may experience hallucinations, delusions, or behave erratically. They may also have trouble communicating or following instructions.

Hypoactive delirium:

This type of delirium is characterized by lethargy, drowsiness, and inactivity. People with hypoactive delirium may appear unresponsive or withdrawn, have difficulty speaking or moving, and seem disoriented or confused. This type of delirium can be more difficult to detect because the symptoms are not as obvious as those of hyperactive delirium.

Mixed delirium:

This type of delirium is characterized by combining features of both hyperactive and hypoactive delirium. People with mixed delirium may experience periods of agitation and restlessness, followed by periods of lethargy and withdrawal.