The invention relates to a turbine (1) having a rotor (2), which has a bladed area (3) for rotor blades (4) and a thrust compensation piston (5). The thrust compensation piston (5) has a hot side (6), which faces the bladed area (3), and a cold side (7), which is remote from the bladed area (3). On one side, a feed (14) for sealing fluid (15), which is assigned to the cold side (7), and a leakage fluid feed (12), which is flow-connected to the bladed area (3), open out into a mixing area (13), and on the other side a discharge line (16) branches off from the mixing area. The invention also relates to a method for discharging hot leakage fluid (17). In a turbine (1), the leakage fluid (17) passes through a radial gap (12) between a thrust compensation piston (5) of a rotor (2) and a stationary turbine part (11) and is mixed with a cooler sealing fluid (15) and discharged.