The traditional long silky coat, which tends to reach the floor, requires daily brushing to avoid tangles. Because of their long coat and fast-growing hair, regular grooming is necessary, which may be expensive and should be taken into account when considering adopting one of this breed. Often, the coat is clipped short to simplify care, but the coat still requires daily brushing. Allergists do recognize that, at times, a particular allergy patient will be able to tolerate a particular dog; but they agree that 'the luck of the few with their pets cannot be stretched to fit all allergic people and entire breeds of dogs'. The Shih Tzu coat is said to fall out only when brushed or broken, or just said to shed. The coat may also be wavy or coarse. The coat may also be wavy or coarse.