Letter S
Sudden weight loss
Also known as: Unintentional weight loss
Sudden weight loss symptom guide: what it can mean, possible causes, and when to seek care. Educational only.
Overview
Sudden weight loss can relate to diabetes, thyroid disease, infection, or stress. It is not always something to celebrate. Losing more than about 5% of weight in a few months deserves evaluation.
Possible causes
- Diabetes
- Thyroid problems
- Chronic infection (e.g. HIV, TB—after testing)
- Depression / stress
- Digestion problems
When to see a doctor
See a clinic for unexplained weight loss, especially with fever, night sweats, or fatigue.