The call comes as the NHS South Tees Clinical Commissioning Group (CCG) carries out a 12-week period of engagement looking at Breast Diagnostic Services and how they work for patients in South Tees.
The service - covering Middlesbrough, Redcar and East Cleveland - moved from Middlesbrough's James Cook University Hospital to the University Hospital of North Tees in October 2015 due to an inability to recruit breast radiologists.
The CCG wants to hear from anyone who has had a breast diagnostic appointment at North Tees after being referred by their GP - this does not include patients referred though a routine breast screening appointment.
Councillor Joan McTigue, who chairs Middlesbrough Council's Health Scrutiny Panel, said: "As chair of the Health Scrutiny Panel, I urge anyone affected to make contact and air their views, experiences and opinions.
"If caught in good time, lives can be saved and we all know that means many children will not have to grow up without their Mother.
"Half an hour of your time can sometimes mean the difference between life and death."
Dr Janet Walker, Medical Director at NHS South Tees CCG, said: "There are lots of ways patients can get involved with our 12-week listening exercise - we have three engagement events coming up in 2020, as well as a survey to fill in.
"We would love to hear your views about what is good and bad about the service and how we can improve.
"I would encourage you to either come along to one of our engagement events or complete a short survey.
"Your views will help shape how the service looks in the future."
The 12-week engagement exercise runs until to Friday, February 7, with three events scheduled for the next two weeks:
- Thursday, January 9, 2.30pm - 3.30pm at Palace Hub, 28-29 Esplanade, Redcar, TS10 3AE
To register, visit: https://www.eventbrite.co.uk/e/breast-diagnostic-services-public-event-redcar-tickets-83773632189 or call 01642 745401
- Wednesday, January 15, 10am - 11.30pm at the Acklam Green Centre, Stainsby Road, Middlesbrough, TS5 4JS
To register, visit: https://www.eventbrite.co.uk/e/breast-diagnostic-services-public-event-middlesbrough-am-tickets-85952864331 or call 01642 745401
- Wednesday, January 15, 6pm - 7.30pm at the Acklam Green Centre
To register, visit: https://www.eventbrite.co.uk/e/breast-diagnostic-services-public-event-middlesbrough-pm-tickets-83773337307 or call 01642 745401
An online survey is available at www.surveymonkey.co.uk/r/breastservices
For more information, visit https://www.southteesccg.nhs.uk/get-involved/patient-engagement-diagnostic-breast-services/