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Why Am I Losing Weight Without Trying? Causes and When to Worry
Discover the causes of unexplained weight loss, when to be concerned, and when to seek medical attention. Learn about common conditions and warning signs.
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HF Health AI Editorial Team
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|April 8, 2026Medically reviewed by HF Health AI Editorial Team · Editorial Policy
# Why Am I Losing Weight Without Trying? Causes and When to Worry
Quick Answer: Unexplained weight loss, defined as losing more than 5% of your body weight in 6 to 12 months without intentional effort, can be a sign of an underlying medical condition. It's crucial to consult a healthcare professional to determine the cause and receive appropriate guidance.
Main Causes of Unexplained Weight Loss
Unintentional weight loss can stem from a variety of medical and non-medical factors. Often, it's a combination of issues rather than a single cause. While sometimes a specific reason isn't found, many conditions that lead to weight loss also present with other noticeable symptoms [1].
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unexplained weight lossunintentional weight lossweight loss causeswhen to worrymedical conditions
Primary Source
Mayo Clinic Staff. Unexplained weight loss: Causes.Medical Disclaimer: This article is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of your physician or other qualified health provider with any questions you may have regarding a medical condition.
Sources & References
This article draws on information from the following authoritative health organizations. Always consult a qualified healthcare professional for personal medical advice.