You can take subway lines 3 and 2. According to Baidu map information, you can take subway lines 3 and 2 from Nanjing South Railway Station to the East Theater General Hospital, and you need to transfer midway. The specific route is as follows:

1. First, walk about 10 meters from Nanjing South Railway Station, arrive at Nanjing South Railway Station, take Metro Line 3, pass 8 stops, and arrive at Daxing Palace Station.

2. Secondly, walk about140m and transfer to Metro Line 2.

3. Finally, take Metro Line 2, pass 1 station, arrive at Xi 'anmen Station, and walk for about 490 meters to the East Theater General Hospital.