Stone is a high-quality decorating material with natural beauty. But as its natural and various structures, decide that stone itself will have defect and problem of varying degree. Stone seems very hard, but actually it is delicate. It needs special care when installing and using. As bathroom has more moisture, so if improper maintenance, the installingbathroom stone will be polluted easily. The common pollutions of bathroom stone are caused by mould, stains and germ. The stone surface will become dull and produce some white stains. Other common problem of bathroom stone in daily life is that soap and shampoo's pollution to bathroom stone. The damaged bathroom stone will show rough and reluster surface. To avoid these cases happen, the best way is not to use shampoo products contains coloring matter and soap and shampoo that without artificial color. Some medical shampoo also do harm to stone. If possible, prevent using this kind of product in bathroom.