The Japanese Chin's coat requires weekly brushing or combing, with special attention being given to the skirt and the area under the ears and legs. They do not require frequent bathing. These dogs are single-coated and single-hair shedders, and it is very seldom one will find a Chin with an undercoat. A Japanese Chin will have a light blowing of their coat once a year. Without fiber in the diet, they may need to have their anal glands expressed due to them becoming impacted. The skin folds in and around the nose and flattened facial area of a Japanese Chin can trap moisture from its oversized eyes and cause fungal problems. The face should be occasionally wiped with a damp cloth and the folds cleaned with a cotton swab, in addition the breed requires between 16 and 18 hours of sleep a day.