The number of official reports of child sex abuse have increased by 42% this year.
Over 1,800 were made to Tusla between January and May, compared to less than 1,300 in the same period in 2021.
These reports are made by Gardaí, teachers, social workers and other experts.
While official reports of child abuse or neglect have increased by almost one-third this year.
There were almost 9,000 in the first five months of 2021 - over 2,000 more than the same period last year.
Barnardos chief executive, Suzanne Connolly, says many cases happen in a child's home.
"Children can be at-risk within their own family context.
"They can also be at-risk in terms of what might be a trusted adult that the family may think is safe for their children to have contact with, but turns out not to be safe.
"We just need to be also aware that in some organisations which provide services to children, there may be people who have an indication... towards abusing children".
She says it's very worrying to hear about the abuse.
"The increase may indicate that professionals are aware of their responsibilities under Children First to report any concerns they may have.
"Hitherto they may not have been as aware.
"Nevertheless what the crucial point is is that the investigations are carried out in a timely manner, and that children get the support and services that they need".
Anyone affected by issues raised in this article can contact Barnardos on 01-453-0355 or CARI on 1890-92-45-67.
You can report child sexual abuse to the Gardaí over the phone 24 hours a day on 1800-55-52-22.