More than 90% of teachers in Wales have seen an increase in safeguarding referrals in children, according to new data from NSPCC Cymru.
The organisation said the numbers highlight the "worrying scale of abuse and neglect faced by children".
More than 600 teachers were surveyed by the NSPCC and teaching union NASUWT.
It found that 86% of teachers in Wales reported an increase in child neglect referrals in the past year.