How is an acute illness characterized?

An acute illness is characterized by its sudden onset and the potential for severe symptoms, typically occurring over a brief period. This type of illness often requires immediate medical attention due to the rapid escalation of its effects on the body. Acute illnesses can include conditions such as infections, injuries, or heart attacks, where the symptoms arise quickly. While they can be intense and sometimes lead to serious complications, they are usually self-limiting and resolve within a short timeframe, either on their own or with appropriate treatment. This contrasts sharply with chronic conditions, which develop over a long period and can persist for months or years, often requiring ongoing management.