
Over-bathing strips the natural oils that keep your Shih Tzu's long, dense, soft double coat healthy and waterproof — under-bathing allows dirt, allergens, and dead coat to accumulate against the skin. For this breed, every 4-6 weeks aligns with professional bathing schedules, but at-home baths between appointments depend on lifestyle and coat type. Double-coated Shih Tzus typically need bathing every 6–8 weeks, with extra de-shedding baths during spring and fall blowouts. When in doubt, brush thoroughly and spot-clean with a damp cloth rather than reaching for shampoo.
Human shampoo is never appropriate — the pH difference damages canine skin and coat over time. Match shampoo to coat need: a de-shedding or oatmeal shampoo for the Shih Tzu's dense undercoat during shedding season, and a general moisturizing formula otherwise. Avoid heavily fragranced products; they mask odor temporarily but irritate sensitive skin. Always dilute concentrated shampoos per label instructions — undiluted product is harder to rinse and leaves residue that causes itching.
Coat-matched picks — buy once, use every groom.

The gold standard for poodles and doodles. Features long pins that penetrate deep into dense coats to remove tangles and fluff the hair.

Used by professional groomers worldwide. Made of high-quality Italian stainless steel with a heavy-duty spring for clean, sharp cuts.
Preparation prevents 90% of bathing problems. Brush your Shih Tzu thoroughly before wetting — water tightens existing tangles into mats that are painful to remove afterward. For the Shih Tzu's long, dense, soft double coat, this pre-bath brush-out is non-negotiable; skipping it is how post-bath mat emergencies happen. Use lukewarm water — hot water strips oils faster and dries skin. Saturate completely before applying shampoo; double coats repel water initially and shampoo applied to a dry coat doesn't clean effectively. Work shampoo from neck to tail, avoiding eyes and inner ears, massage to the skin with your fingertips (not nails), and rinse until the water runs completely clear — leftover shampoo is the leading cause of post-bath itching. Apply conditioner from mid-shaft to tips, wait 3–5 minutes, and rinse again thoroughly.
A damp coat is a mat waiting to happen, especially on Shih Tzus with long, dense, soft double coat. Towel-dry by blotting and squeezing — never rubbing, which tangles the coat. A high-velocity dryer is the professional standard for the Shih Tzu's dense coat: it separates hair, blows out loose undercoat, and dries to the skin in a fraction of the time a household blow-dryer takes. Hold the nozzle at a 45-degree angle and work in sections, brushing as you dry. Never let a Shih Tzu outside with a wet coat in cold weather, and never crate a dog with a damp coat — body heat in an enclosed space creates a humid environment that breeds skin bacteria.
The 30 minutes after a bath set the coat up for success or failure for the next week. Once fully dry, brush through the entire coat with the appropriate tool for a long, dense, soft double coat — this distributes natural oils activated by the massage of bathing and catches any loosened hair before it tangles. A finishing spray on the Shih Tzu's long, dense, soft double coat prevents static and adds slip for easier brushing over the next few days. Check and clean the facial fold above the nose leather weekly — Shih Tzus have a skin fold between the muzzle and the nose that collects moisture and debris, which can cause odor and skin infections if left uncleaned. Log each bath date so you can track frequency against skin and coat condition over time.
Brush a Shih Tzu daily — the dense double coat mats in the armpits, behind the ears, and around the collar zone almost immediately, and even a puppy-cut Shih Tzu needs brushing several times per week.
Certified Master Groomer
With over 15 years of competitive grooming experience, Sarah ensures every guide on Groomas meets the highest professional standards.

The gold standard for poodles and doodles. Features long pins that penetrate deep into dense coats to remove tangles and fluff the hair.

Used by professional groomers worldwide. Made of high-quality Italian stainless steel with a heavy-duty spring for clean, sharp cuts.

The ultimate tool for double-coated breeds. Strips dead undercoat without damaging the guard hairs.