Endoscopic images of mating of male and female hookworms have not been reported so far and are reported here for the first time. The endoscopic images clearly show important differences between the male and female hookworms. The images show that the male hookworm is shorter than the female hookworm. The images also show that the tail of the male hookworm is broad and expanded while the tail of the female hookworm is narrow and pointed. This is due to the presence of broad, expanded copulatory bursa in male__ampersandsignrsquo;s tail which absent in the female__ampersandsignrsquo;s tail. The endoscopic images clearly show that mating of male and female hookworms occur at a y-shaped angle. This is due to the difference in the position of male and female genital openings. Also, dorsal bend of the head (hook) and S-shape of the hookworm are clearly seen in the endoscopic images.