Complication

Complication may refer to:

• Complication (medicine), an infrequent and unfavorable evolution of a disease, a health condition or a medical treatment
• Complication (horology), a special feature in a mechanical clock
• "Complication", a track from The Fragile by Nine Inch Nails
• "Complication" (song), a 1966 single by The Monks
• Complications - Trilogy of Intricacy, an EP by Age of Silence
• "Complications" (CSI: Miami), an episode of CSI: Miami
• "Complications" (Terminator: The Sarah Connor Chronicles), an episode of Terminator: The Sarah Connor Chronicles