Health Tip: What May Cause Swelling

(HealthDay News) -- Swelling occurs when fluid builds up in the body's tissues.

The U.S. National Library of Medicine offers this list of common causes of swelling:

• Sunburns and other burns.
• Health conditions such as heart failure, liver failure or chronic kidney disease.
• Pregnancy.
• Thyroid disease.
• Too much salt (sodium).
• A side effect of certain drugs, including some steroids, blood pressure medicines, painkillers or estrogen.
• Poor nutrition.