Ontario wait times, December 2025: what changed
Compared with November 2025, the Ontario average wait was shorter for 9 and longer for 2 of 11 common surgeries and scans. The average time to see an ER doctor was 2 hr 6 min, 18 min longer than in November 2025.
Surgery and scans: Ontario average
Average days waited by non-urgent patients across Ontario, December 2025, against November 2025 and December 2024. For surgery, days to see the surgeon plus days to surgery.
- Hip replacement198 days6 days longerwas 192 days13 days shorterwas 211 days
- Knee replacement211 days6 days shorterwas 217 days22 days shorterwas 233 days
- Cataract surgery197 days7 days shorterwas 204 days3 days shorterwas 200 days
- Shoulder surgery190 days5 days shorterwas 195 days10 days shorterwas 200 days
- Hysterectomy252 days8 days longerwas 244 days10 days shorterwas 262 days
- Gallbladder removal111 days1 day shorterwas 112 days8 days shorterwas 119 days
- Groin hernia repair155 days5 days shorterwas 160 days8 days shorterwas 163 days
- Weight-loss surgery161 days2 days shorterwas 163 days5 days longerwas 156 days
- Breast cancer surgery43 days2 days shorterwas 45 days9 days shorterwas 52 days
- MRI scan99 days3 days shorterwas 102 days3 days longerwas 96 days
- CT scan81 days5 days shorterwas 86 days6 days shorterwas 87 days
Not in this report: Thyroid surgery, Kidney stone removal and Prostate cancer surgery. Ontario Health has no one-month Ontario figure for them for December 2025; for less common procedures it often publishes a quarter or a year instead.
Biggest drops from November 2025
- Cataract surgery: 204 days in November 2025 to 197 days in December 2025, 7 days shorter
- Knee replacement: 217 days in November 2025 to 211 days in December 2025, 6 days shorter
- CT scan: 86 days in November 2025 to 81 days in December 2025, 5 days shorter
- Groin hernia repair: 160 days in November 2025 to 155 days in December 2025, 5 days shorter
- Shoulder surgery: 195 days in November 2025 to 190 days in December 2025, 5 days shorter
Biggest increases from November 2025
- Hysterectomy: 244 days in November 2025 to 252 days in December 2025, 8 days longer
- Hip replacement: 192 days in November 2025 to 198 days in December 2025, 6 days longer
Shortest wait, by hospital
The hospital with the shortest average wait for each common surgery and scan, December 2025. Only hospitals with 10 or more patients for each wait that month. Children’s hospitals are not included.
- Hip replacementUnity Health Toronto - St. Michael's, TorontoUnity Health Toronto - St. Michael's, Toronto94 days
- Knee replacementMichael Garron Hospital, TorontoMichael Garron Hospital, Toronto97 days
- Cataract surgeryClear Vision Surgical, KitchenerClear Vision Surgical, Kitchener40 days
- Shoulder surgeryHumber River Health - Wilson, TorontoHumber River Health - Wilson, Toronto105 days
- HysterectomyUnity Health Toronto - St. Joseph's, TorontoUnity Health Toronto - St. Joseph's, Toronto82 days
- Gallbladder removalWilliam Osler Health System - Civic, BramptonWilliam Osler Health System - Civic, Brampton45 days
- Groin hernia repairCambridge Memorial Hospital, CambridgeCambridge Memorial Hospital, Cambridge75 days
- Weight-loss surgerySt. Joseph's Health Care System - Hamilton, HamiltonSt. Joseph's Health Care System - Hamilton, Hamilton47 days
- Breast cancer surgeryWomen's College Hospital, TorontoWomen's College Hospital, Toronto32 days
- MRI scanCollingwood General and Marine Hospital, CollingwoodCollingwood General and Marine Hospital, Collingwood19 days
- CT scanAlmonte General Hospital, AlmonteTied: Timmins and District Hospital, TimminsAlmonte General Hospital, AlmonteTied: Timmins and District Hospital, Timmins6 days
Biggest improvement, by hospital
For each common surgery and scan, the hospital whose average wait dropped the most from November 2025 to December 2025. Only hospitals with 10 or more patients for each wait in both months are compared.
- Hip replacementLakeridge Health - Ajax, Ajax239 to 178 days, of 35 hospitals comparedLakeridge Health - Ajax, Ajax239 to 178 days, of 35 hospitals compared61 days shorter
- Knee replacementNiagara Health System - Welland County, Welland363 to 278 days, of 43 hospitals comparedNiagara Health System - Welland County, Welland363 to 278 days, of 43 hospitals compared85 days shorter
- Cataract surgeryHealth Sciences North - Laurentian, Greater Sudbury355 to 273 days, of 56 hospitals comparedHealth Sciences North - Laurentian, Greater Sudbury355 to 273 days, of 56 hospitals compared82 days shorter
- Shoulder surgeryUnity Health Toronto - St. Joseph's, Toronto319 to 153 days, of 21 hospitals comparedUnity Health Toronto - St. Joseph's, Toronto319 to 153 days, of 21 hospitals compared166 days shorter
- HysterectomySt. Joseph's Health Care System - Hamilton, Hamilton438 to 243 days, of 7 hospitals comparedSt. Joseph's Health Care System - Hamilton, Hamilton438 to 243 days, of 7 hospitals compared195 days shorter
- Gallbladder removalUnity Health Toronto - St. Joseph's, Toronto149 to 80 days, of 16 hospitals comparedUnity Health Toronto - St. Joseph's, Toronto149 to 80 days, of 16 hospitals compared69 days shorter
- Groin hernia repairWRHN - Midtown, Kitchener437 to 260 days, of 28 hospitals comparedWRHN - Midtown, Kitchener437 to 260 days, of 28 hospitals compared177 days shorter
- Weight-loss surgeryUniversity Health Network - Western, Toronto359 to 347 days, of 5 hospitals comparedUniversity Health Network - Western, Toronto359 to 347 days, of 5 hospitals compared12 days shorter
- MRI scanNiagara Health System - St. Catharines General, St. Catharines284 to 232 days, of 79 hospitals comparedNiagara Health System - St. Catharines General, St. Catharines284 to 232 days, of 79 hospitals compared52 days shorter
- CT scanChildren's Hospital of Eastern Ontario, Ottawa255 to 122 days, of 107 hospitals comparedChildren's Hospital of Eastern Ontario, Ottawa255 to 122 days, of 107 hospitals compared133 days shorter
From November 2025 to December 2025. Hospitals tied for the biggest drop are each listed.
Emergency rooms
Average time from triage or registration to first seeing a doctor, all patients.
- Ontario, December 2025
- 2 hr 6 min
- November 2025
- 1 hr 48 min18 min longer now
Biggest drops from November 2025
- Brightshores Health System - Wiarton, Wiarton1 hr 24 min to 1 hr24 min shorter
- St. Joseph's General Hospital, Elliot Lake1 hr 24 min to 1 hr24 min shorter
- McCausland Hospital, Terrace Bay1 hr 36 min to 1 hr 18 min18 min shorter
- Weeneebayko Area Health Authority - Moose Factory, Moose Factory1 hr 6 min to 48 min18 min shorter
- Brightshores Health System - Lions Head, Lion's Head1 hr to 48 min12 min shorter
- Centre for Addiction and Mental Health, Toronto1 hr 24 min to 1 hr 12 min12 min shorter
- Manitoulin Health Centre - Little Current, Little Current1 hr to 48 min12 min shorter
- The Ottawa Hospital - General, Ottawa2 hr 30 min to 2 hr 18 min12 min shorter
Biggest rises from November 2025
- WRHN - Queen's Boulevard, Kitchener1 hr 54 min to 2 hr 48 min54 min longer
- Arnprior Regional Health, Arnprior2 hr 12 min to 3 hr48 min longer
- Children's Hospital of Eastern Ontario, Ottawa3 hr 30 min to 4 hr 18 min48 min longer
- Health Sciences North - Laurentian, Greater Sudbury2 hr 36 min to 3 hr 24 min48 min longer
- Queensway-Carleton Hospital, Ottawa2 hr 42 min to 3 hr 30 min48 min longer
Of 159 emergency departments with a figure in both months. Ontario Health publishes these to the nearest tenth of an hour (6 minutes). Every Ontario ER
Source and method
All figures are from Ontario Health’s public reporting, as published with its August 2026 data. This report compares December 2025 with November 2025 and with December 2024. Surgery and scan figures are the average days waited by non-urgent (priority 4) adult patients whose wait ended that month, rounded to whole days; for surgery, days to see the surgeon plus days to surgery. Only one-month figures are compared, never a quarter or a year. A hospital is counted only with 10 or more patients for each wait in the month, and in both months for a change. Emergency room figures are the average time from triage or registration to first assessment by a doctor, for all patients. Ontario Health can revise earlier months. Nothing here says why a wait changed. How these numbers work