Raynaud’s phenomenon is an exaggeration of the body’s normal cold response. It causes local blood vessels in the extremities to narrow dramatically for short periods of time before returning to normal.
The hands and feet are most commonly affected, but it can also occur in the ears and nose. It can be caused by autoimmune disorders like lupus or occur on its own without any known underlying disease. Raynaud’s can also be triggered by emotional stress.
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Other symptoms of Raynaud’s phenomenon include:
- discoloration: white or bluish color in extremities — in nose, fingers, toes, or ears
- numbness, tingling, and sometimes pain
- feeling of coldness in a particular area that can last for minutes or hours
Visit your doctor if you suspect Raynaud’s. Learn more about the condition here.
Other chronic diseases
You may also suffer from low blood circulation to your nose if you have certain chronic conditions that further reduce blood flow in your body, decrease the oxygen levels in your blood, or cause your heart to not pump effectively or efficiently.
High blood sugar
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This is typically related to diabetes, though not always. Diabetes, if severe and left untreated, can lead to serious circulation issues. Diabetics (type 1 or type 2) are at great risk of nerve damage and blood vessel damage in their extremities if they don’t take care of themselves during bouts of high blood sugar.
Other symptoms of high blood sugar include:
- wounds that have difficulty healing
- frequent urination
- excessive hunger or thirst
- fatigue
- blurry vision
- high blood pressure
- numbness, “pins and needles” sensation, or tingling, in the extremities, especially in the feet
- unexpected weight loss
- nausea
See your doctor if you suspect that you may have or be developing diabetes. Learn more about high blood sugar.
Heart condition
Poor heart health can lead to poor circulation, with a cold nose being a possible sign. Heart diseases like atherosclerosis (hardening of the arteries), weak heart muscles (cardiomyopathy), and peripheral arterial disease (PAD) can greatly weaken circulation to the extremities.
Other symptoms of heart disease include:
- high blood pressure
- high cholesterol
- fast, slow, or irregular heartbeat
- chest pain, especially with exercise
- losing your breath while walking up one flight of stairs or down the block
- swelling in the feet or ankles
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See a doctor immediately if you suspect a heart attack. Read about heart attack warning signs.
Frostbite
If you’ve been exposed to extremely cold temperatures — especially for too long in freezing water or windy, cold weather — a cold nose may signal the beginnings of frostnip or frostbite.
Your nose may be one of the most susceptible of your body parts to frostbite if left exposed, along with your hands and feet.
Other symptoms of frostbite include:
- prickly or tingling sensation
- numb and painful skin
- discoloration on nose (red, white, gray, yellow, or black skin)
Seek medical attention immediately if you experience these. Learn more about frostbite.
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