The greatest in number of surgical operation in the large intestine and anus related diseases such as hemorrhoids, colorectal cancer. 

Seoul Songdo Hospital is the first large intestine and anus related specialized hospital in Korea. The predecessor of this hospital is Yongsan Surgery founded by the hospital's current chief director, JongGyun Lee in 1981.
Located in Junggu, Seoul, it has served over 1 million out-patients and reached over 0.2 million surgical operation record. This is a phenomenal record throughout Asia beyond Korea. Songdo Hospital achieved the no.1 in operation record in 2006 (Health Insurance Review and Assessment Service), and the number of patients has increased by more than 15% per year. For example, more than 10,000 people have taken surgery of hemorrhoids, coleretal cancer in 2009.

In 2005 and 2008 the hospital was accredited by the Ministry of Health and Welfare, received the best article award from American Society of Coloproctology. It presents for the first time in Korea microsurgical operation at World Society of Coloproctology in March 2010. With this surgical method, it made the reoccurrence rate of multiple anil fistula less than 5% and the normal length of 6~8 weeks recovery period is shortened below 4 weeks
The Peptic Ulcer Gastroduodenoscopic Center in Songdo hispital is nation's largest center and the hospital is very proud of its clinical experiences and skills in the detection and treatment of early colon cancer. In addition, genetic test system is introduced to diagnos an early colon cancer, and the hospital runs Songdo cell research institute, Felvic Floor disease center. Colorectal Surgery, urology, gynecology are treated cooperatively and the hospital gives collaborative medical treatment on felvic floor related (rectum, womb, bladder and nervous tissues) diseases.