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  1. Unexplained Weight Gain & Causes of Rapid Weight Gain

    Apr 24, 2025 · There are many reasons why you could gain weight unintentionally. Causes of unexplained weight gain range from getting older and hormonal changes to health conditions …

  2. Rapid weight gain: 11 underlying causes and what to do

    Apr 22, 2025 · Rapid weight gain can sometimes indicate a medical issue. Learn more about which conditions can cause rapid weight gain and when to see a doctor.

  3. Why did I gain 5 pounds this week? The real reasons behind ...

    Jul 9, 2025 · Most abrupt weight gain—one to eight pounds over days to a few weeks—is water or stool, not new fat. Common culprits include salty meals, premenstrual fluid retention, …

  4. Conditions That Can Cause Weight Gain - WebMD

    May 21, 2025 · Could a medical condition be the reason for your recent weight gain? Find out some possible causes and how best to manage them.

  5. 9 Causes of Unexplained Weight Gain and Fatigue - Verywell …

    Oct 10, 2025 · Experiencing unexpected fatigue and weight gain? Learn about possible underlying health conditions, from PCOS to thyroid issues, and when to seek help.

  6. 13 Common Causes Of Sudden, Unexplained Weight Gain ...

    Aug 6, 2025 · Sudden weight gain can be a normal part of life, but unexplained weight gain can also be a result of conditions including PCOS, depression, and perimenopause.

  7. What’s Causing Your Unexpected Weight Gain? - AARP

    Apr 12, 2024 · Some people do experience sudden or more severe weight gain, which can be linked to everything from high levels of stress and trauma to taking certain medications. …