Scar tissue may refer to:
Medicine
- Scar, an area of fibrous tissue that replaces normal skin after injury
- Granulation tissue, a product of healing in major wounds
Film and television
- Scar Tissue (1975 film), or Wanted: Babysitter, a film by René Clément
- Scar Tissue (2002 film), a television movie starring Roberta Maxwell
- Scar Tissue (2012 film), a film featuring Helen George
- "Scar Tissue" (Dexter), a 2013 TV episode
- "Scar Tissue" (The Punisher), a 2019 TV episode
- "Scar Tissue" (The Shield), a 2003 TV episode
Literature
- Scar Tissue (autobiography), a 2004 autobiography by Anthony Kiedis
- Scar Tissue (novel), a 1993 novel by Michael Ignatieff
Music
- Scar Tissue (band), an American electro-industrial group
- "Scar Tissue", a song by Red Hot Chili Peppers, 1999
- "Scar Tissue", a song by Camila Cabello from Camila, 2018
- "Scar Tissue", a song by Five Finger Death Punch from F8, 2020