It depends on three things

There's no single rule for every dog. How often your dog needs a bath comes down to:

  • Coat type. Short coats, double coats, long silky coats and hairless dogs all have different needs.
  • Skin. Some dogs have naturally oily skin, some have dry or sensitive skin, and some have skin conditions that need special care.
  • Lifestyle. A dog that swims in ponds and rolls in mud will need more baths than a dog that mostly naps on the sofa.

For a typical healthy dog, a bath every 1–3 months is plenty. In between, bathe only when your dog is properly dirty or smelly.

How often to bathe, by coat type

These are general starting points. Your groomer or vet may suggest something different for your dog.

Coat typeExamplesHow often to batheGood to know
Short, smoothBeagle, Boxer, DalmatianEvery 2–3 months, or when dirtyA rubber brush or mitt once a week keeps the coat clean
Double coatHusky, German Shepherd, LabradorEvery 2–3 monthsDry right down to the skin, and brush often in shedding season
Long or silkyShih Tzu, Yorkshire Terrier, MalteseEvery 3–6 weeksOften bathed as part of regular grooming. Brush out tangles first
HairlessChinese Crested, XoloitzcuintliOften more frequent, sometimes weeklySkin is exposed, so it can get oily or blocked. Ask your vet about sun protection
Oily coatsBasset Hound, Cocker SpanielEvery 4–6 weeksNatural oils build up and can smell. Ask your vet if the skin seems greasy or red

Why over-bathing is a problem

A dog's skin and coat are protected by natural oils. These keep the skin soft, help keep the coat waterproof and form a barrier against irritants. Bathing too often, especially with harsh products, washes those oils away.

The result can be dry, flaky, itchy skin. Itchy dogs scratch, lick and chew, which can damage the skin further and open the door to infection. If your dog is licking or chewing a lot, read our guide on why dogs lick their paws.

Always use dog shampoo

Dog skin has a different pH from human skin. Human skin is more acidic, and shampoos for people are made to suit it. On a dog, they can be too harsh and strip the skin.

Pick a gentle shampoo made for dogs. A mild, unscented or oatmeal formula suits most dogs, especially those with sensitive skin. Dish soap and household cleaners are a firm no.

Keep dog products away from cats

Some dog flea shampoos and treatments contain ingredients, such as permethrin, that are very toxic to cats. Never use a dog flea product on a cat, and keep cats away from dogs that have just been treated, as the label directs.

How to bath your dog, step by step

  1. Brush first. Remove loose hair and work out any tangles. Water tightens mats, so deal with them before the bath.
  2. Get everything ready. Shampoo, a jug or shower head, towels, treats and a non-slip mat for the bath or shower tray.
  3. Use lukewarm water. Test it on your wrist. Water that feels warm to you can feel hot to a dog.
  4. Wet the coat thoroughly. Start at the neck and work back. Thick coats take a while to soak through to the skin.
  5. Lather gently. Massage the shampoo into the coat, following the direction of hair growth. Avoid the eyes, nose and inside the ears.
  6. Clean the face with a damp cloth rather than pouring water over the head.
  7. Rinse, then rinse again. Leftover shampoo can irritate the skin. Keep going until the water runs clear and the coat no longer feels slippery.
  8. Reward your dog. Treats and calm praise throughout help make the next bath easier.

Drying your dog

Drying matters as much as washing. A coat left damp, especially a thick double coat, can trap moisture against the skin. That can lead to a musty smell and irritated, sore patches.

  • Towel off well. Press and squeeze the coat rather than rubbing hard, which can cause tangles.
  • Use a dryer on a cool or low setting if your dog tolerates it. Keep it moving and never point it at the face.
  • Dry the ears. Gently wipe the outer ear and folds with a soft towel. Damp ears can be prone to infection, especially in floppy-eared breeds.
  • Keep your dog warm and indoors until fully dry.

Brushing does more than bathing

For most dogs, regular brushing is the real secret to a clean, healthy coat. Brushing:

  • Removes dirt, dust and loose hair before they build up
  • Spreads natural oils along the coat, keeping it glossy
  • Prevents mats and tangles, which can pull on the skin
  • Gives you a chance to spot lumps, ticks, fleas or sore patches early

Short-coated dogs may only need a weekly brush. Long, silky and double-coated dogs often need brushing several times a week, or daily during shedding season.

When a vet may prescribe medicated baths

Sometimes baths are part of treatment. Your vet may prescribe a medicated shampoo for:

  • Skin infections, caused by bacteria or yeast
  • Allergies, to soothe itchy skin and wash off allergens
  • Seborrhoea, where the skin is too oily or too flaky
  • Certain parasites, as part of a wider treatment plan

Medicated shampoos often need to stay on the skin for a set number of minutes before rinsing, and may be used more often than normal baths for a while. Follow your vet's instructions exactly, and don't swap in a regular shampoo halfway through.

See your vet if your dog has red, flaky or greasy skin, bald patches, a strong smell that returns soon after bathing, or is scratching, licking or chewing more than usual.

FAQ

Can I bathe my dog once a week?

For most dogs that's too often and can dry out the skin. Some dogs, such as hairless breeds or dogs on a medicated shampoo plan, may need weekly baths, but only if your vet or groomer recommends it.

Can I use human shampoo on my dog?

It's best not to. Human skin is more acidic than dog skin, so shampoo made for people can be harsh and leave dog skin dry and itchy.

How often should I bathe a puppy?

Only when needed. Use a gentle puppy shampoo, keep the puppy warm and dry it well afterwards. Ask your vet if you're unsure whether your puppy is old enough.

Why does my dog still smell after a bath?

A coat that stays damp can smell musty, so dry it fully. If the smell comes back quickly, it may come from the ears, teeth, skin or anal glands, and is worth a vet check.

Is it OK to bathe my dog after a flea treatment?

Check the label. Many spot-on treatments advise not bathing for a set time before and after applying them, because water and shampoo can make them less effective.

Sources

This article is general information, not a replacement for advice from your vet.

The Pet Brief Editorial Team

Written from veterinary and welfare sources and re-checked on the reviewed date above. Opinions in “Our take” are ours. Read our editorial policy.