Why do shih tzus smell

Content on WhatAnswers is provided "as is" for informational purposes. While we strive for accuracy, we make no guarantees. Content is AI-assisted and should not be used as professional advice.

Last updated: April 8, 2026

Quick Answer: Shih Tzus can develop odors primarily due to their unique physical characteristics and grooming needs. Their long, dense double coat traps moisture, dirt, and debris, creating an environment where bacteria and yeast can thrive, leading to skin infections and a musty smell if not properly maintained. Facial folds and wrinkles around their nose and eyes can accumulate tears, saliva, and food particles, which ferment and produce odors. Regular grooming every 3-4 weeks, including bathing, brushing, and cleaning facial folds, is essential to prevent these smells, as neglect can result in conditions like dermatitis or ear infections within weeks.

Key Facts

Shih Tzus have a double coat that requires grooming every 3-4 weeks to prevent matting and odor buildup.
Facial folds in Shih Tzus can harbor bacteria and yeast, leading to infections if not cleaned daily or weekly.
Ear infections, common in Shih Tzus due to their floppy ears, can cause a foul smell and may develop within 2-3 weeks of neglect.
Anal gland issues affect up to 10% of small dog breeds like Shih Tzus, contributing to odors if not expressed regularly.
Dental disease, prevalent in over 80% of dogs by age 3, can cause bad breath in Shih Tzus without proper oral care.

Overview

Shih Tzus, a toy breed originating from Tibet and developed in China over 1,000 years ago, are known for their affectionate nature and distinctive appearance, including a long, flowing double coat and flat face. Historically bred as companion dogs for Chinese royalty, they have specific grooming needs that, if unmet, can lead to odor issues. Their coat, which grows continuously at a rate of about 0.5 inches per month, requires regular maintenance to prevent matting and skin problems. According to the American Kennel Club, Shih Tzus rank 20th in popularity among dog breeds in the U.S. as of 2023, highlighting their widespread ownership and the importance of addressing common care challenges like smell. Their small size, typically weighing 9-16 pounds, and brachycephalic (short-nosed) features contribute to unique health and hygiene considerations that owners must manage to keep them odor-free.

How It Works

Odors in Shih Tzus arise from several interconnected factors related to their anatomy and care routines. Their double coat consists of a soft undercoat and a longer topcoat, which can trap moisture, dirt, and organic matter, creating a breeding ground for bacteria and Malassezia yeast—common culprits behind skin infections and a musty smell. Facial folds, particularly around the nose and eyes, accumulate tears (due to epiphora) and saliva, leading to bacterial growth and fermentation if not cleaned regularly, often requiring daily wiping with a damp cloth. Ear canals, which are narrow and covered by floppy ears, restrict airflow, increasing humidity and risk of infections like otitis externa, which can produce a foul odor within weeks if untreated. Additionally, anal glands may become impacted or infected, releasing a pungent secretion, while dental issues from plaque buildup contribute to bad breath; these problems are mitigated through grooming every 3-4 weeks, including bathing, brushing, and professional cleanings.

Why It Matters

Addressing odor in Shih Tzus is crucial for their health and well-being, as persistent smells often indicate underlying issues like skin infections, ear problems, or dental disease that can cause discomfort and lead to more serious conditions if ignored. For owners, proper grooming reduces veterinary costs—treating an ear infection can average $150-$300—and enhances the human-animal bond by ensuring a pleasant living environment. In real-world applications, regular maintenance prevents common issues: for example, cleaning facial folds daily can cut infection risks by up to 50%, while brushing teeth several times a week helps avoid periodontal disease, which affects over 80% of dogs by age 3. This care supports the breed's longevity, with Shih Tzus typically living 10-16 years, and promotes responsible pet ownership, aligning with guidelines from organizations like the ASPCA.