BNS Patenga is the largest hospital of Bangladesh Navy. She was Commissioned on 10 Aug 1989. Training school for Medical Branch Sailors is also located here. This hospital gives tremendous medical support to the Military personnel including civilian of the Chattogram Naval Area. BAF units of Ctg, RAB Coast Guard, DGFI and retired personnels. During COVID-19 pandemic, this hospital treated total 2,820 COVID patients with utmost professional efficiency. This hospital also renders medical support to foreign personnel working under Bangladesh Navy. Medical formalities of UN Mission and foreign training course are also processed in this hospital. During recent flood of Feni a field hospital was established in Fulgazi with direct support from BNS Patenga. Other Medical coverage including transfer of FDMN to Bhashanchar is provided from this hospital.