Boy Bitten by a Lizard features a young boy with a startled expression as a lizard bites his finger. He is dressed in simple clothing, with his hair falling in soft curls. The colors are rich and warm, with deep browns and vibrant greens that draw your eye to the action.

The lizard, painted with incredible detail, stands out against the boy's skin, emphasizing the moment of surprise. Notice how the boy's wide eyes and slightly open mouth convey his shock at the unexpected bite. The lizard's scales are depicted with remarkable precision, showcasing Caravaggio's talent for realism. The light falls dramatically on the boy's face, highlighting his features and adding depth to the scene.

The background is dark and muted, which helps to focus on the boy and the lizard. Caravaggio was known for his dramatic use of light and shadow, a technique called chiaroscuro. He painted this work during the late 16th century, a time when Baroque art was emerging in Italy. An interesting fact about Caravaggio is that he often used live models for his paintings, sometimes even including himself in the scenes.

His unique style and approach to realism greatly influenced future generations of artists.