In severe cases, damage to internal organs may occur, which, in some cases, may cause death.
Various studies have suggested that severe child sexual abuse may have a deleterious effect on brain development. (1998) found "reversed hemispheric asymmetry and greater left hemisphere coherence in abused subjects;" Teicher et al.
(1993) found that child sexual abuse was associated with a reduced corpus callosum area; various studies have found an association of reduced volume of the left hippocampus with child sexual abuse; used the "Limbic System Checklist-33" to measure ictal temporal lobe epilepsy-like symptoms in 253 adults.
Reports of child sexual abuse were associated with a 49% increase to LSCL-33 scores, 11% higher than the associated increase of self-reported physical abuse. (2006) found that the self-reported math Scholastic Aptitude Test scores of their sample of women with a history of repeated child sexual abuse were significantly lower than the self-reported math SAT scores of their non-abused sample.
Dolls are sometimes used to help explain what happened.