Repeated nightmares are bad dreams that recur frequently and involve the same theme.
Nightmares usually begin before the age of 10. They are considered a normal part of childhood, unless they significantly interfere with sleep or development.
Nightmares are more common in girls than in boys. They may continue into adulthood.
Repeated nightmares may also occur with post-traumatic stress disorder (PTSD).
Nightmares are different from night terrors.
Nightmares - repeated; Dream anxiety disorder
Arnulf I. Nightmares and dream disturbances. In: Kryger M, Roth T, Dement WC, eds. Principles and Practice of Sleep Medicine. 6th ed. Philadelphia, PA: Elsevier; 2017:chap 104.
Owens JA. Sleep medicine. In: Kliegman RM, Stanton BF, St. Geme JW, Schor NF, eds. Nelson Textbook of Pediatrics. 20th ed. Philadelphia, PA: Elsevier; 2016:chap 19.