Complication
Complication or complications may refer to:

Dramatic arts
"Complications" (CSI: Miami), an episode of CSI: Miami
"Complications" (Terminator: The Sarah Connor Chronicles), an episode of Terminator: The Sarah Connor Chronicles
Complications (TV series), a 2015 USA Network television series starring Jason OMara

Medicine
Complication (medicine), an unfavorable evolution of a disease, health condition or  medical treatment

Music
Albums
Complications - Trilogy of Intricacy, a 2005 EP by Norwegian progressive metal band Age of Silence
Complications (Dover album), a 2015 album by Spanish rock band Dover

Songs
"Complication", a 1999 song by Nine Inch Nails from The Fragile
"Complications", a 2008 song by deadmau5 from Random Album Title

Technology
Complication (horology), a clock display other than the time
Smartwatch complication Complication (horology)#Use in smartwatches