Provided herein are methods, apparatuses, computer program products, and systems for fluorescence imaging. One method can include activating an ultraviolet (UV) light source to transmit UV light at a predetermined wavelength that is below a band of human visual perception to illuminate a region of a human body; generating a fluorescent image of the region of the human body based on fluorescent signals that are emitted from the region of the human body in response to illumination using the UV light and are captured by the camera device; and performing one or more actions using the fluorescent image of the region of the human body.