Minor injury units cannot treat patients who have collapsed, chest pain, breathing problems, abdominal pain, alcohol related problems, drug overdose, gynaecology problems, health conditions normally seen by a GP such as minor illness, mental health problems, dental problems, neck injury, chest or back injury. In an emergency dial 999 or attend your nearest Emergency Department.
For guidance and advice on the treatment of minor injuries and ailments, the NHS 111 Wales website is the first port of call.
If you are unsure whether you should attend an MIU, please telephone in advance, to allow our colleagues to put you or your loved one in the right place, at the right time, the first time.
Minor Injury Units (MIUs) are staffed by experienced emergency practitioners who are supported by health care assistants, there are no doctors in MIU. Patients that attend one of the units will be assessed and treated as quickly as possible. If your condition cannot be dealt with at the Minor Injuries Unit, then you will be referred to your GP or nearest Emergency Department or to another appropriate service.
Minor injuries include:
Ysbyty Penrhos Stanley, Holyhead, Anglesey, LL65 2QA. Telephone number: 0300 085 0022
Ysbyty Dolgellau, Dolgellau, LL40 1NT. Telephone number: 03000 850 020
Bryn Beryl Hospital, Caernarfon Road, Pwllheli, LL53 6TT. Telephone number: 03000 850014
Ysbyty Alltwen, Tremadog, LL49 9AQ. Telephone number: 03000 850 027
Due to continued staffing issues the MIU in Alltwen will remain closed overnight from 8pm until the 31 October 2025. Services will remain open during the day, from 8am to 8pm. The normal 8am to midnight service will restart on Saturday, 1 November 2025 at 8:00am. If normal services are able to be resumed earlier we will keep you informed.
Tywyn Hospital, Bryn Hyfryd Road, Tywyn, LL36 9HH. Telephone number: 03000 850 026
Llandudno Hospital, Hospital Road, Llandudno, Conwy, LL30 1LB. Telephone number: 03000 850 013
Denbigh Hospital, Ruthin Road, Denbigh. LL16 3ES
Telephone number: 03000 850 019
Holywell Hospital, Halkyn Road, Holywell, CH8 7TZ. Telephone number: 03000 856 739
Mold Community Hospital, Ashgrove, Mold, CH7 1XG. Telephone number: 03000 850 006