Some exhibit learning difficulties, behavioral issues and can be considered SED aka socially emotionally disabled. In the US about 1 in 10 fall within these boundaries.
Mental health for children is due to his health problem which may become a disturbing action for such child . In such cases it is also the responsibility of parents to inform his /her class teacher regarding the disease ,experience by children & in this line parents take also the necessary helpline for such child which school parents may help to know for taking the care & welfare of such child .