September 3, 2026

Early Signs You Might Have Been Bitten by a Dangerous Insect

Swelling Around the Eye (Romaña Sign)

One of the most recognizable early signs of Chagas infection is swelling around one eye, known medically as Romaña sign. This occurs when parasite-contaminated feces enter the eye after a bite near the face.

The eyelid may appear puffy, reddish, and inflamed, usually without much pain. While this sign does not appear in everyone, it is a strong indicator of early infection and requires immediate medical attention.

Flu-Like Symptoms That Seem Unrelated

Within a few weeks after being bitten, some people develop mild flu-like symptoms. These often include:

Fever

Fatigue or weakness

Headaches

Muscle or joint pain

Loss of appetite

Because these symptoms resemble a common viral illness, they are frequently overlooked or misdiagnosed.

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