My Dogs Bed Is Wet but It’s Not Urine? 11 Possible Causes

It’s been months since you have been training your dog on peeing at an appropriate place in the house. Hence, your dog is slowly conforming to your instructions; it has been making use of its potty. But you start noticing your dog is leaving wet spots on surfaces it sleeps on, including your bed and sofa.

can dogs sense when something is wr...
can dogs sense when something is wrong with their owner

“What is going on?” You ask yourself. You tried sniffing the wet spot on your dog’s bed from a distance, and you can’t perceive the typical odor of your dog’s urine. You then move closer to examine this wet spot further, discovering it is odorless. The dog’s bed is wet, but it’s not urine? Your dog does not show any sign of remorse. It is as if it is not aware of this wet spot that is getting you worked up; your pooch just carries on with life, oblivious of what happened. 

When your dog leaves an odorless wet spot on surfaces he takes a nap on, it is likely suffering from a medical condition known as urinary incontinence, a loss of voluntary control of urination. Although the fluid responsible for this wet spot is a bit different from your dog’s urine. In this article, we’ll explain the causes of odorless wet spots. Later on, we’ll supply answers to frequently asked questions.

If your dog is suffering from urinary incontinence, We recommend this doggy incontinence chew to help support bladder control

What Could the Wet Spot Be?

The most common reason for odorless wet spots is urinary incontinence. Below are some reasons for urinary incontinence in dogs. Other possible reasons for these wet spots left by dogs are discussed.

Anatomic Abnormalities

Ectopic ureters

Abnormal anatomy such as ectopic ureters might be present in your dog. Ureters are the tubes that carry urine from a dog’s kidney to its bladder; if these tubes bypass the bladder and open into another part of the dog’s urogenital system, it can lead to leaking of urine in such a dog.

Urethral hypoplasia

Hypoplasia refers to the underdevelopment of a tissue or organ in the body. The urethra is the tube that carries urine from the bladder through the reproductive parts to the exterior in a dog. If this tube is underdeveloped or weak, it can lead to involuntary urine leakage in a dog which can manifest as wet spots.


Older spayed female dogs are likely to develop urinary incontinence sometime in their lifetime. A spayed female dog is one whose ovaries have been removed. If the surgery was not carried out properly, the chances of incontinence years later are even higher.


As with all living creatures, dogs’ muscles get weaker as they age, including those of the bladder and urethra. These muscles gradually lose their contractility and strength. As a result, older dogs find it more difficult to control their urination. This is similar to what happens in humans.

Neurological Causes

Damage to the brain centers or any of the spinal nerves responsible for urination can lead to abnormalities in the process. Here are some examples:

Bladder Hypermobility

Some muscles surround a dog’s bladder. If this muscle contracts excessively, it can lead to urine trickling from a dog’s bladder, producing wet spots. If any of the spinal nerves that function in the urination pathway are damaged, it can produce abnormalities in the frequency of a dog’s urination.

Brain and Spinal lesions

If any of the brain or spinal centers that control urination are damaged by trauma or injury to a dog, it can lead to excessive urination in a dog which might appear as odorless wet spots where the dog rests.

Urinary Tract Infection

A urinary tract infection(UTI) in a dog is a painful experience for both the dog and the owner. This occurs when bacteria find their way into a dog’s urinary tract and multiply. It often leads to frequent and painful urination in a dog. It is a common cause for dogs producing odorless wet spots. A sign of UTI in dogs is painful urination and persistent licking of the urinary tract.

Bladder Tumors

A tumor is the excessive abnormal growth of tissue. A tumor in the bladder will reduce the space urine can occupy, leading to pressure build-up in a dog’s bladder. This can force out urine before it’s due in a dog leading to wet spots.

Other causes

Abnormal cyst under the fur

A cyst underneath your dog’s fur could be oozing out a fluid. You might want to check your dog’s fur closely to rule this out.

Drippy noses

Some dogs have drippy noses, which can be behind a wet spot where they have laid. You can observe your dog see if this might be a cause of wet spots.

Behavioral problems

Some canines are fond of licking their genitals. This frequent licking can cause them to droop, forming wet spots where they are laid. Sometimes a dog licking an area persistently might be a sign of an infection.

Since It Doesn’t Have an Odor, Is It Still Possibly Urine?

Yes. Wet spots are patches of clear fluid left on a surface on which a dog takes a nap. In simple terms, wet spots are mostly odorless urine. If you smell these wet spots, you will detect it is often odorless. It’s an indication your puppy is taking in a lot of water.

The odor of your dog’s urine should be a yardstick in determining its health. A foul-smelling wet spot is a sign all may not be well with your canine. Diabetic dogs are known for producing foul-smelling urine. Speak to your vet immediately if you observe any changes in your dog’s urine.

The color of urine varies from clear to light yellow. Clear urine could indicate your dog is well hydrated. Urine appearing as dark yellow means your canine is dehydrated; bright yellow color means proteins are leaking into urine. Urine appearing brownish or orange in color might indicate a serious condition in your dog that warrants your vet’s attention.

What Should I Do If My Dog’s Bed Is Wet, but It Doesn’t Seem to Be Urine?

Get a sample of the fluid your dog is producing for close examination by the vet. The vet will carry out a blood test, urinalysis, or imaging to detect what is causing your dog to leave these wet spots.

Dogs could also produce a wet spot due to a urinary tract infection which can cause your dog to lick such an area frequently. An injury or trauma to a part of the dog’s body can also lead to fluid oozing out of such a part. A physical abnormality could also be a cause. What can you do if you think the fluid isn’t urine, especially if your dog keeps leaving these spots everywhere they relax? Schedule a visit with your veterinarian as soon as you can.

If the odorless wet spot produced by your dog doesn’t appear to be urine, this fluid could have been caused by something else in your dog. An abnormal “female part” discharge can appear as clear and watery, purulent, bloody, or mucoid. Do not delay in taking your dog to the vet if you notice any abnormal symptoms.

We recommend this doggy incontinence chew to help your dog control its bladder better.


In this article, we have seen it is normal for dogs to wet their beds even after learning potty behavior. The odorless wet spots that might not smell like urine are diluted and watery. The most common cause of dogs leaving odorless wet spots where they have