Abstract: As a result of the study of the line of infrared filters from 720 nm to 950 nm, it was found that the most detailed images of the palms are obtained when using an infrared filter with a transmission wavelength of 760 nm. Photography of the palms in infrared light, through a 760 nm light filter, allowed the discovery of the "black phalanges" effect, which is associated with a stronger absorption of infrared radiation by the phalanges of the fingers than by the palms. A hypothesis is put forward about the connection of the discovered effect with human pathology. Infrared images revealed dark spots measuring 1 to 1.5 mm in size, located near the border of the lower and middle phalanges of the fingers in individuals aged 50 to 75. It is suggested that these dark spots are the result of age-related changes or abnormalities in the finger veins. The study hypothesizes a correlation between the lack of visibility of finger veins in infrared light and the tendency towards prolonged physical exertion.
Keywords: Infrared light, palm, fingers, pathology, finger veins.
Title: INFRARED HAND PHOTOGRAPHS AS A METHOD OF DETECTING HIDDEN PATHOLOGICAL SIGNS ON THE PALM
Author: Nikolai Ganin
International Journal of Healthcare Sciences
ISSN 2348-5728 (Online)
Vol. 13, Issue 2, October 2025 - March 2026
Page No: 354-359
Research Publish Journals
Website: www.researchpublish.com
Published Date: 30-December-2025
