[citation needed] Haque worked in government and private health service in Bangladesh starting from April 1982 until 2021.

In last 18 years he has consulted nearly 9,50,000 (Nine lac fifty thousand) new patients and operated 5,35,000 (Five lac thirty five thousand) patients in private and government's hospital having piles, fistula, anal fissure, colon cancer and rectal cancer, polyp, rectal prolapse & diverticulitis.

Professor Haque popularised the idea of treating 70-80% of Haemorrhoid patients with the non-operation procedure such as Rubber Ring Ligation.

He has taken the initiative to observe "World Piles & Colorectal Cancer Day" on 20 November in Bangladesh and internationally to increase public awareness.

In this program, he trained them practically how to perform Longo operation skillfully without any trauma to the anal canal exterior.

His eldest son Asif Almas Haque completed MBBS (SSMC), MRCS (ENG), FCPS (Surgery), FRCS (ENG), Fellow of American College of Surgeons (FACS), Fellow of American Society of Colon & Rectal Surgeons (FASCRS).