Prof. Dr. Ahamaduz Zaman is one of the leading colorectal surgeons in Dhaka, Bangladesh, with over 40 years of surgical experience and more than 50,000 patients treated. He holds MBBS, MS (General Surgery), PhD in Medical Science, and FICS (USA), and is recognized as Bangladesh’s only PhD holder in Colorectal Surgery. He specializes in colorectal, laparoscopic, laser, and general surgery, treating piles (hemorrhoids), bum fistula, bum fissure, pilonidal sinus, colorectal cancer, hernia, gallstones, appendicitis, and other anorectal disorders. He is the Chief Consultant at Proctosurgery Bangladesh and also consults at Ibn Sina Hospital, Dhaka.