Read below about prolonged weight loss, including causes and common questions. Or get a personalized analysis of your prolonged weight loss 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.

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9 Potential Prolonged Weight Loss Causes

Disclaimer: The article does not replace an evaluation by a physician. Information on this page is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes.

  1. 1.Overactive Thyroid

    The thyroid is a butterfly-shaped gland in the neck, just above your collarbone. It is one of your endocrine glands, which make hormones. Thyroid glands control how fast one burns calories and how fast the heart beats. If the thyroid is too active, it makes more thyroid hormones than the body needs. This is called hyperthyroidism.

    Great prognosis with high remission rates

    Rarity:
    Uncommon
    Top Symptoms:
    fatigue, anxiety, depressed mood, irritability, trouble sleeping
    Urgency:
    Primary care doctor
  2. 2.Uterine Fibroids

    Uterine fibroids are noncancerous tumors in the uterus. They are common in women of childbearing age.

    Treatment ranges from medication to surgical removal of the fibroid.

    Rarity:
    Common
    Top Symptoms:
    vaginal bleeding, pelvis pain, abdominal cramps (stomach cramps), painful periods, irregular period
    Urgency:
    Primary care doctor
  3. 3.Uterine Fibroids

    Uterine fibroids are noncancerous tumors in the uterus. They are common in women of childbearing age.

    Treatment ranges from medication to surgical removal of the fibroid.

    Rarity:
    Common
    Top Symptoms:
    vaginal bleeding, pelvis pain, abdominal cramps (stomach cramps), painful periods, irregular period
    Urgency:
    Primary care doctor
  4. 4.Chronic Kidney Disease

    Chronic kidney disease, also known as chronic renal failure, is a disorder caused by gradual loss of kidney function. It is most common in elderly individuals.

    This condition cannot be reversed; however, treatment can delay or stop the disease from worsening.

    Rarity:
    Common
    Top Symptoms:
    fatigue, difficulty concentrating, loss of appetite, decreased sex drive, dry skin
    Urgency:
    Primary care doctor

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  5. 5.Sarcoidosis

    Sarcoidosis is an inflammatory disease that most often affects the lungs and skin, but can als affect the joints.

    This condition has a broad range of severity. It often goes away on its own over time but some cases can cause permanent damage.

    Rarity:
    Rare
    Top Symptoms:
    fatigue, headache, shortness of breath, loss of appetite, joint pain
    Urgency:
    Primary care doctor
  6. 6.Uterine Fibroids

    Uterine fibroids are noncancerous tumors in the uterus. They are common in women of childbearing age.

    Treatment ranges from medication to surgical removal of the fibroid.

    Rarity:
    Common
    Top Symptoms:
    vaginal bleeding, pelvis pain, abdominal cramps (stomach cramps), painful periods, irregular period
    Urgency:
    Primary care doctor
  7. 7.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.

    Usually resolves within 2-3 days.

    Rarity:
    Common
    Top Symptoms:
    diarrhea, vomiting or nausea, fatigue, nausea, abdominal pain (stomach ache), headache
    Symptoms that always occur with viral (norovirus) infection:
    diarrhea, vomiting or nausea
    Symptoms that never occur with viral (norovirus) infection:
    severe abdominal pain, throbbing headache, severe headache, tarry stool, vaginal bleeding, alertness level change
    Urgency:
    Self-treatment
  8. 8.Chronic Obstructive Pulmonary Disease (Copd)

    COPD (chronic obstructive pulmonary disease) is a chronic condition of the lungs and the airways in the lungs. Damage has occured due to long-term exposure to substances that irritate and damage the lungs, such as cigarette smoke or air pollution. This damage can cause symptoms like shortness of breath, decreased exercise tolerance and cough. A common cold or other types of infection can cause symptoms to worden acutely, this is called an exacerbation.

    Often a lifelong condition

    Rarity:
    Common
    Top Symptoms:
    fatigue, cough and dyspnea related to smoking, cough, shortness of breath, trouble sleeping
    Symptoms that always occur with chronic obstructive pulmonary disease (copd):
    cough and dyspnea related to smoking
    Symptoms that never occur with chronic obstructive pulmonary disease (copd):
    rectal bleeding
    Urgency:
    Primary care doctor
  9. 9.New Onset Crohn's Disease

    Crohn's disease is a disorder caused by chronic inflammation in the digestive tract. The damaging inflammation causes abdominal pain, diarrhea, weight loss, and malnutrition.

    Not expected to reduce life expectancy

    Rarity:
    Rare
    Top Symptoms:
    fatigue, stomach bloating, loss of appetite, constipation, abdominal cramps (stomach cramps)
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Prolonged Weight Loss

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

If you've answered yes to one or more of these questions, try our prolonged weight loss symptom checker to find out more.

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Prolonged Weight Loss Symptom Checker Statistics

  • People who have experienced prolonged weight loss have also experienced:

    • 7% Fatigue
    • 6% Loss of Appetite
    • 3% Abdominal Pain (Stomach Ache)
  • People who have experienced prolonged weight loss had symptoms persist for:

    • 69% Over a Month
    • 12% Two Weeks to a Month
    • 7% One to Two Weeks
  • People who have experienced prolonged weight loss were most often matched with:

    • 18% Overactive Thyroid
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

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