"mental damage" is correct and can be used in written English.
For example: "John suffered severe mental damage after the accident."
Patel wants the law to encompass mental damage.
I can't tell you the mental damage it did being in an adult jail.
None the less, he acknowledges that the game can inflict mental damage.
By then it was all causing us a lot of mental damage.
When small children do not get nutrition, the physical and mental damage is irreversible.
Women who drink during pregnancy risk physical and mental damage to their babies (fetal alcohol syndrome).
This happens when detainees are held in solitary confinement, an extreme form of punishment that risks causing severe mental damage.
The discomfort provoked by "Tarnation," though, as it forcibly poked our noses into a clear case of mental damage, has no echo here.
Amnesty said on Thursday that Badawi could suffer "debilitating long-term physical and mental damage" from continued flogging, which violates international law.
If I were to tell him that I'd taken lots of drugs in my youth, and suffered irreparable mental damage, what would he say?
The astonishing number of psychological casualties early in the First World War made the unprecedented mental damage inflicted by modern mechanized warfare clear to all.
