During a physical exam, one simple rule to aid in determining abnormalities is to look for physical bilateral symmetry.

• A. True
• B. False
• C. Only for certain species
• D. Bilateral symmetry is a key indicator of abnormalities when comparing sides

Answer: (D)

Examining bilateral symmetry provides a quick, practical baseline for detecting abnormalities. In most animals, paired structures should look and function similarly on the left and right sides. When you compare sides, any asymmetry—such as uneven swelling, a sunken or protruding contour, a drooping feature, or unequal muscle mass—signals something off, like injury, infection, inflammation, or a neurologic issue. Because this approach is fast and broadly applicable across many species, it’s a reliable first-look rule during physical exams in wildlife rehab.

While there can be natural, species-specific variations, the core idea remains: deviations from symmetry are important clues that warrant closer follow-up.