Though Lahad Datu Hospital might be what brings you to town, perhaps you'll have a chance to explore more of Lahad Datu while you are here.
You can find out about the history of Lahad Datu when you stop by Menara Kayangan. Wander the gardens and parks while you're in the area.
Find out about the history of Lahad Datu when you spend time at Amal Tuan Guru Haji Muda Mosque. While you're in the area, wander around the gardens.