The Betsi Cadwaladr University Health Board says it wants to "put an end to speculation" over the future of north Wales' three district hospitals.
The trust has conducted reviews into services at Ysbyty Gwynedd, Bangor, Ysbyty Glan Clwyd, Denbighshire and the Maelor Hospital at Wrexham.
It said it wants to "stimulate" discussions and no decisions had been made.
However, it has not guaranteed that services will not change.
Among those being reviewed are maternity services across north Wales.
Proposals include downgrading acute maternity services, including special care baby units, at one of the region's hospitals and centralising specialist care.
Children's services are also under the spotlight, with the possibility of centralising 24-hour care at Glan Clwyd, and offering only paediatric day care in Wrexham and Bangor.
Other services are also being reviewed.
In a statement, the board said it "wishes to put an end to speculation regarding the future of the three district general hospitals at Bangor, Bodelwyddan and Wrexham.
"This speculation has arisen out of a series of service reviews initiated earlier this year."
The board said the reviews were not designed to make decisions about future services.
If any of the reviews suggested any need for change, the board said, the proposals "would need to be very carefully considered by the health board and should they consider there is a case for change those proposals are most likely to be subject to formal public consultation which would involve the community health council".
It said Health Minister Edwina Hart had made it clear that changes to services like paediatrics "would have to be based on the strongest grounds for change".