What does the medical term secondary mean?

Secondary in the medical context refers to something that is:

- Second in time or occurrence: A secondary condition or disease develops after or is caused by another primary condition. For example, secondary pneumonia refers to pneumonia that develops as a complication of another illness, such as the flu or COVID-19.

- Related to but not the main or primary cause: Secondary causes or factors contribute to a condition or disease but are not the primary triggers. For example, secondary risk factors for heart disease may include high cholesterol, high blood pressure, and obesity, which can contribute to the development of heart disease but are not the primary cause.

- Additional or accessory: Secondary treatments, surgeries, or procedures are those performed in addition to or following a primary intervention. For example, secondary wound closure may refer to suturing or dressing a surgical wound after the initial surgery.