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Health News For North East

Thursday, January 22, 2026
Public Health Sudbury and Districts
Public Health shares tips on preventing frostbite and hypothermia

With cold weather being a fact of life for northerners, Public Health Sudbury & Districts would like to remind everyone to take appropriate precautions against the cold. Injuries related to the cold can happen at a wide range of temperatures but occur more quickly when it’s colder. Frostbite and hypothermia are the most common and preventable injuries.

Frostbite occurs when skin freezes. In addition to feeling cold, frostbitten skin can feel numb and appear pale or grey. In more severe cases, frostbitten skin becomes hard, waxy, and can turn white or dark. Body extremities are often the first to be frozen/frostbitten. If you suspect frostbite, seek urgent medical attention.

Frostnip usually occurs before frostbite. Skin affected by frostnip may appear shiny and rosy. Frostnip is a sign that frostbite may occur shortly. If you see these signs, move to a warmer environment, or protect the skin with layers of clothing.

Hypothermia is a life-threatening condition. It occurs when the body is exposed to the cold for a long time and loses more heat than it can generate. Individuals with hypothermia might shiver, feel drowsy or confused, or have problems speaking, loss of coordination, or pale or bluish lips. Shivering can disappear in later stages of hypothermia.

For more information and emergency treatment of frostbite and hypothermia, Public Health suggests reviewing the Cold-Related Emergencies: Staying Warm and Safe in Canadian Winters – Canadian Red Cross or the St. John Ambulance First Aid Reference Guide starting at Page 233.

To prevent cold-related injuries:

Check the weather forecast and plan accordingly.
Limit the amount of time you spend in the cold.
Dress in layers, with a wind-resistant outer layer. Wear a hat and mittens or insulated gloves. Keep your face warm by wearing a scarf, neck tube, or face mask.
Wear warm, waterproof footwear.
Seek shelter from the wind.
Stay active. Walking or running will help warm you by generating body heat but try to avoid sweating.
Stay dry. Remove wet clothing if possible and remove or ventilate outer layers of clothing if you are sweating.
Speak to your doctor or pharmacist as certain medications can make you more susceptible to the cold.

On very cold days, check in on neighbours who may be vulnerable to cold due to age, living conditions, health conditions, reduced mobility, or isolation.

People who work outside, have pre-existing medical conditions, use alcohol or other drugs, or who are unhoused are more at risk of frostbite and hypothermia.

The possibility of severe, non-fatal impacts of cold weather—such as amputation or extended hospitalizations—increases for people who are unhoused. To help people in these situations, consider making a financial contribution or donating warm blankets, warm socks, mittens, hats, long underwear, footwear, and outerwear to local aid groups.

For more information on preventing cold weather injuries, please visit www.phsd.ca or call 705.522.9200, ext. 464 (toll-free 1.866.522.9200).