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Learn about your cold legs/feet, including causes and common questions. Or get a personalized analysis of your cold legs/feet from our A.I. health assistant. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

Cold Legs / Feet Checker

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Top 10 Cold Legs / Feet Causes

  1. 1.Influenza

    Influenza, or Flu, is an infection of the airway caused by the flu virus, which passes through the air and enters the body through the nose or mouth. The symptoms are similar to those of a cold, but the flu is usually more serious.

    If your flu-like symptoms are existing for less than 48 hours, it might be helpful to seek care by telephone or in a walk-in-clinic to get a course of oseltamivir (Tamiflu). Most people will get better on their own by drinking lots of fluids and taking an over-the-counter medication such as acetominophen (Tylenol) to help with aches or fever.

    Rarity:
    Common
    Top Symptoms:
    fatigue, headache, loss of appetite, cough, muscle aches
    Symptoms that never occur with influenza:
    headache resulting from a head injury
    Urgency:
    Phone call or in-person visit
  2. 2.Raynaud Phenomenon

    Primary Raynaud phenomenon is a disorder of the blood vessels, usually in the fingers and toes, which causes the blood vessels to narrow when feeling cold or stressed. When this happens, blood can't get to the surface of the skin and the affected areas turn white and blue.

    You can safely treat this condition on your own with conservative measures, such as avoiding cold and use of protective measures and/or quitting smoking. If this is ineffective or you have other symptoms in addition to this, contact your primary care physician when convenient.

    Rarity:
    Common
    Top Symptoms:
    distal numbness, cold toe, cold fingers, spontaneous toe pain, turning blue or purple from coldness
    Urgency:
    Self-treatment
  3. 3.Hypothyroidism

    Hypothyroidism occurs when the thyroid, a butterfly-shaped organ inside the neck, no longer produces adequate levels of hormones. Thyroid hormones are essential for many bodily functions including breathing, heart rate, and metabolism.

    You should visit your primary care physician. Hypothyroidism is a complex condition that is usually treated with hormone replacement therapy.

    Rarity:
    Rare
    Top Symptoms:
    fatigue, depressed mood, difficulty concentrating, weight gain, muscle aches
    Urgency:
    Primary care doctor
  4. 4.Viral (Norovirus) Infection

    Noroviruses are a group of related viruses that leads to nausea, vomiting, diarrhea, and cramps. These viruses cause gastroenteritis, an inflammation of the stomach and intestines. When the diarrhea and/or vomiting is severe, dehydration can occur. Symptoms of dehydration include a dry mouth, dizziness, urinating less frequently and dark urine.

    You can safely treat this condition at home. Make sure you drink plenty of water and fluids (Gatorade, Pediatlyte) to replace what is lost with diarrhea. If symptoms of dehydration occur or you are unable to keep down any liquids, seek care at your primary care physician or an urgent care.

    Rarity:
    Common
    Top Symptoms:
    fatigue, abdominal pain (stomach ache), nausea, headache, stomach bloating
    Symptoms that always occur with viral (norovirus) infection:
    hidden: gastroenteritis symptoms
    Symptoms that never occur with viral (norovirus) infection:
    severe abdominal pain, throbbing headache, severe headache, tarry stool
    Urgency:
    Self-treatment
  5. 5.Low Blood Sodium

    Hyponatremia is a deficiency in sodium. Sodium is one of the most important nutrients in the body, needed for nerves to conduct signals, muscles to contract, and blood pressure to be maintained at safe levels, etc. A deficiency in sodium can cause severe, widespread symptoms.

    You need to seek care immediately. A walk-in clinic will likely be able to help bring your sodium levels back up to normal levels safely.

    Rarity:
    Rare
    Top Symptoms:
    fatigue, nausea, headache, abdominal pain (stomach ache), loss of appetite
    Urgency:
    In-person visit

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  6. 6.Viral (Rotavirus) Infection

    Rotavirus is a virus that causes an infection of the gut, known as gastroenteritis. Symptoms include diarrhea, vomiting and fever. When the diarrhea and/or vomiting is severe, dehydration can occur. Symptoms of dehydration include a dry mouth, dizziness, urinating less frequently and dark urine.

    You can safely treat this condition at home. Make sure you drink plenty of water and fluids to replace what is lost with diarrhea. Eat as normally as possible. If symptoms of dehydration occur, or you are unable to keep down any liquids, seek care at your primary care physician or an urgent care.

    Rarity:
    Rare
    Top Symptoms:
    fatigue, nausea, abdominal pain (stomach ache), headache, loss of appetite
    Symptoms that always occur with viral (rotavirus) infection:
    hidden: gastroenteritis symptoms
    Symptoms that never occur with viral (rotavirus) infection:
    constipation, tarry stool
    Urgency:
    Self-treatment
  7. 7.Restless Legs Syndrome (Rls)

    Restless Legs Syndrome is a common condition characterized by an urge to move the legs in order to stop unpleasant sensations.

    You should see a doctor if these symptoms continue or begin to get worse

    Rarity:
    Common
    Top Symptoms:
    daytime sleepiness, trouble sleeping, dull or achy leg pain, difficulty falling asleep, restless legs
    Urgency:
    Primary care doctor
  8. 8.Mononucleosis Infection

    EBV Mononucleosis is a clinical syndrome characterized by fever, sore throat, and swollen lymph nodes.

    You should visit your primary care physician within the next 24 hours. Diagnosis is confirmed by looking for antibodies against EBV. Treatment involves supportive care (hydration, antipyretics, and analgesics, such as acetaminophen and ibuprofen). Aspirin should not be given to children because of the possibility of Reye syndrome. It is also recommended that you do not do any strenuous physical activity and contact sports in the initial 3 to 4 weeks of illness due to the potential for splenic rupture.

    Rarity:
    Common
    Top Symptoms:
    fatigue, headache, loss of appetite, abdominal pain (stomach ache), cough
    Symptoms that never occur with mononucleosis infection:
    rectal bleeding
    Urgency:
    Primary care doctor
  9. 9.Obstructive Sleep Apnea

    Sleep apnea is a disorder in which the upper airway is obstructed during sleep, which causes poor sleep quality and frequent awakening.

    You should visit your primary care physician within a few weeks to discuss your symptoms. The physician will likely order a sleep test to confirm the diagnosis.

    Rarity:
    Common
    Top Symptoms:
    fatigue, irritability, daytime sleepiness, trouble sleeping, sore throat
    Urgency:
    Primary care doctor
  10. 10.Iron Deficiency Anemia

    Anemia is a condition in which the body does not have enough healthy red blood cells, which deliver oxygen. Iron deficiency anemia occurs when the body does not have enough iron. Iron helps make red blood cells.

    You should visit your primary care physician, who will take a blood test to confirm diagnosis. Treatment involves iron supplementation (pills) or transfusion in really extreme cases (not likely).

    Rarity:
    Common
    Top Symptoms:
    fatigue, headache, shortness of breath, dizziness, heavy menstrual flow
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Cold Legs / Feet

  • Q.Any fever today or during the last week?
  • Q.Have you lost your appetite recently?
  • Q.Have you been feeling more tired than usual, lethargic or fatigued despite sleeping a normal amount?
  • Q.Do you currently smoke?

If you've answered yes to one or more of these questions, check our cold legs/feet symptom checker.

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Cold Legs / Feet Symptom Checker Statistics

  • People who have experienced cold legs/feet have also experienced:

    • 4% Fatigue
    • 3% Cold Hands
    • 3% Abdominal Pain (Stomach Ache)
  • People who have experienced cold legs/feet were most often matched with:

    • 8% Influenza
    • 7% Raynaud Phenomenon
    • 6% Hypothyroidism
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

Cold Legs / Feet Checker

Take a quiz to find out why you’re having cold legs/feet.

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