The honest answer is that it depends on her coat, and that most people are wrong in one of two directions.
Some bathe far too often, usually with good intentions and often with a product that is too harsh to be used that regularly. Others go months, notice the coat has gone dull and the smell has become a permanent feature of the sofa, and conclude that this is simply what dogs are like.
Neither is necessary. Here is how to work out where you sit.
Start with the coat, not the calendar
Bathing frequency is driven by coat type more than by anything else.
Short, smooth coats — the low-maintenance end. These dogs shed dirt reasonably well and need bathing least often. Brushing does most of the work. The bath is for when she is actually dirty.
Double coats — a dense undercoat beneath a coarser topcoat. These need less frequent bathing than people assume, and far more brushing than people expect. The undercoat holds water, and a badly dried double coat is a genuine problem, not an aesthetic one.
Long, silky, curly and non-shedding coats — the highest-maintenance group. Hair that keeps growing rather than shedding out needs regular washing and, critically, regular brushing between washes. Bathing a matted coat makes the matting worse.
Then adjust for her life, not yours
A dog who swims, rolls, walks on treated pavements, or sleeps on your bed will need more frequent washing than a dog who does not. A dog with a skin condition may be on a schedule set by a vet — if so, that schedule wins over everything in this article, without exception.
The signs you are over-washing
This is the more common error among people who care, which is to say, among people reading this.
- The coat looks dull rather than glossy, and does not improve with brushing.
- Flaking at the skin, most visible along the back and at the base of the tail.
- More scratching after a bath than before it — the clearest signal there is.
- The coat feels dry or straw-like rather than smooth.
If you are seeing these, the fix is usually not a better shampoo. It is a longer gap, a gentler formula, and a proper leave-in step so the coat is being conditioned between washes rather than stripped and left.
The signs you are under-washing
Less subtle. A smell that returns within a day of airing the room. Visible greasiness at the base of the coat when you part it. Debris trapped close to the skin. In heavy coats, matting that has begun to form close to the body rather than at the ends.
What actually changes the answer
Two things.
A gentler formula moves the schedule. The reason the standard advice is cautious about frequent bathing is that a lot of what people wash dogs with is not gentle enough to be used often. A formula designed to be used regularly changes the math. This is not a claim that you should bathe her more — it is a claim that the frequency question and the product question are the same question, and most advice separates them.
The step after the bath matters more than the bath. Condition, dry properly — particularly double coats, all the way to the skin — and use a leave-in treatment so the coat is being tended between washes rather than only during them. The gloss people admire on a well-kept dog is almost never the result of the bath. It is the result of what happens in the three weeks after it.
A working answer
If you want a number to start from: most dogs, most lifestyles, land somewhere between a couple of weeks and a couple of months between baths, with brushing doing the daily work in between. Short coats at the longer end, long and curly coats at the shorter. Adjust from there based on what her coat is telling you, which is more reliable than any schedule we could print.
And the part nobody says out loud: bathed on Sunday, rolling in something regrettable by Tuesday. Both things are true at once, and we would not want a dog who respected the effort.