Dr. Hanna has 25 years experience in dealing with complex urological problems in infants and children. In addition, he has performed 2600+ hypospadias repairs and more than 1000 surgeries for varying degrees of vesicoureteral reflux and megaureter as well as having reconstructed over 85 children born with bladder exstrophy.

Dr. Hanna is extremely interested in the diagnosis and early treatment of children with antenatal hydronephrosis, as well as children with ambiguous genitalia. He also has a wide experience in treating children with undescended testicles and other anomalies of the urinary tract.