Whether or not you can take a bath with a cast depends on the specific part, whether it is a cast on the foot, or a cast on the arm or elbow. It is recommended not to take a bath, or to cover the plastered part with plastic sheeting or other things when bathing, so as not to let it penetrate into the water. In fact, the plaster itself into the water does not matter, but into the water after the plaster is not easy to dry, the water inside does not evaporate, easy to cover the skin rotten, cover bad. So the limb where the cast is applied should not get wet because it is afraid that the water will accumulate inside and muffle the skin, especially if there is a wound, don’t wash it. Therefore, after the cast, other parts can be washed, but the part of the cast better not get wet, or later very troublesome, may need to replace the cast.