Shaken baby syndrome – Wikipedia

Shaken baby syndrome (SBS), also known as Abusive head trauma (AHT), is an injury to a child’s head caused by someone else. Symptoms may range from subtle to obvious. Symptoms may include vomiting or a baby that will not settle. Often there are no visible signs of trauma. Complications include seizures, visual impairment, cerebral palsy, and cognitive impairment.

https://en.wikipedia.org/wiki/Abusive_head_trauma