There is some implied neglect from the mothers who drink too much, but no abuse. Some of Cady's mother's behavior could be considered emotionally abusive.
While no one is assaulted, the main character does describe rape at one point because since she has lost her memory and only knows that something bad happened, she believes that she may have been raped (even though she was not).
No one dies in a fall, but several characters jump from a cliff into the water, and they express fear over another character being injured/killed if she attempts it.
a character with chronic migraines is frequently shamed for the medication she needs by her family. the character also deals with some internalized ableism.