The Rottweiler has a straight, coarse, medium-length outer coat that lies flat. The undercoat is present on the neck and thighs. He should be brushed weekly and bathed regularly. He sheds only very moderately for most of the year, although he will shed more profusely twice a year, usually in the spring and fall. His teeth should be brushed and nails trimmed weekly. The use of a grinding tool such as a Dremel is especially effective in trimming the nails.