International St. Mary's Hospital offers specialised Mastectomy using modern surgical technology and established breast cancer treatment protocols. Established in 2014, the JCI accredited hospital is situated in Seoul, South Korea, with 808 beds, serving local and international patients.

Mastectomy involves removing breast tissue to treat certain breast cancers or significantly reduce cancer risk. The extent of tissue removal depends on the patient's condition, tumour characteristics, and treatment goals. Before surgery, breast specialists conduct detailed imaging and pathological assessment and discuss options such as lymph-node surgery and immediate or delayed breast reconstruction when appropriate.