An abnormal condition or complication resulting from a disease, injury, or other trauma.
Often used in the plural, sequelae.
Chronic kidney disease can be a sequela of diabetes or high blood pressure.
Post-polio syndrome is sometimes called post-polio sequelae.
There is a theory that cases of encephalitis lethargica in the 1920s might have been sequelae of the 1918 influenza outbreak.
Etymology: late 1700s, from Latin sequela, that which follows, consequence.