Edema symptoms depend on the amount of edema and the body part affected.
Edema in a small area from an infection or inflammation (such as a mosquito bite) may cause no symptoms at all. On the other hand, a large local allergic reaction (such as from a bee sting) may cause edema affecting the entire arm. Here, tense skin, pain, and limited movement can be symptoms of edema.
Food allergies may cause tongue or throat edema, which can be life-threatening if it interferes with breathing.
Leg edema for any reason can cause the legs to feel heavy and interfere with walking. In edema and heart disease, for example, the legs may easily weigh an extra 5 or 10 pounds each. Severe leg edema can interfere with blood flow, leading to ulcers on the skin.
Pulmonary edema causes shortness of breath, which can be accompanied by low oxygen levels in the blood. Some people with pulmonary edema may experience a cough with frothy sputum.
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Archived: March 20, 2014
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