Shaken Baby Syndrome

Shaken baby syndrome (SBS) is the result of violently shaking an infant.


  • SBS is a leading type of child abuse in the United States
  • 25% of SBS cases are fatal
  • 80% of SBS victims who survive have permanent disabilities

SBS is preventable. By raising awareness and supporting caregivers, we can reduce these numbers.

Learn more about SBS.

Period of PURPLE Crying

Frustration with a baby’s crying is the top trigger for SBS. See our guidance to parents on how to care for a crying baby and how to care for their own wellbeing so they can react safely and appropriately.

The Period of PURPLE Crying is a framework for explaining infant crying to help parents and caregivers understand it and develop a plan for assessing and responding to a baby’s needs while attending to their own emotions.

Peak of crying Baby may cry more each week, with a peak in crying at 2 months old
Unexpected Crying can come and go for no obvious reason
Resists soothing Baby may keep crying no matter what you try
Pain-like face Baby may look like they’re in pain when they aren’t
Long-lasting Crying can last 5 or more hours a day
Evening Baby may cry more in the afternoon and evening

Learn more about the Period of PURPLE Crying.

SBS Resources