A body-introducable apparatus to be introduced into a subject includes an illuminating unit (15) that includes an LED (15b) that outputs first special light, an LED (15g) that outputs second special light in a wavelength band different from that of the first light, and a light distribution matching unit (15y) that matches distributions of the first special light and the second special light an illuminating control circuit (15A) that illuminates the inside of the subject (900) by driving the illuminating unit (15) and an imaging unit (14) that captures an image of the inside of the subject (900).
