Why Is My Puppy Not Peeing? Causes and What to Do

Name: Why Is My Puppy Not Peeing? Causes and What to Do
Creator: Dr. Zubair Khalid

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-10-03

Puppies skip peeing for many reasons. Most of the time it is normal puppy behavior, like being distracted outside or not needing to go yet. Sometimes it means something serious, such as a urinary blockage or an infection, and that needs a veterinarian right away.

This article is educational and is not a substitute for veterinary diagnosis or treatment.

Quick Answer

A puppy who is eating, drinking, playing, and peeing normal amounts at other times is usually just holding urine or distracted during potty breaks.
A puppy who strains, cries, squats with nothing coming out, or has not peed in 12 or more hours may have a blockage, which is a medical emergency.
Male puppies and small-breed puppies are at higher risk for urethral obstruction, and this can become life-threatening within hours.
Never withhold water to stop accidents or to "make" a puppy pee on schedule. Water restriction can cause dehydration and makes urinary problems worse.
If your puppy seems painful, vomits, or acts dull and weak along with not peeing, go to an emergency clinic now.

What "Not Peeing" Actually Looks Like

Owners use the phrase "puppy not peeing" for several different situations. Knowing which one you are seeing helps you decide how worried to be.

Normal puppy urination

A young puppy pees often. Newborns need help from their mother to urinate. By the time puppies are 6 to 8 weeks old, they urinate many times a day, often every 1 to 2 hours while awake. A puppy who is drinking normally and peeing small amounts frequently is usually fine.

Normal urine is pale yellow to amber. It should not be bloody, cloudy, or foul-smelling. A puppy should pee without crying, straining, or licking at the genital area afterward.

Holding urine versus not producing urine

These look similar but mean very different things.

Holding urine: the bladder is full, the puppy can pee, but chooses not to or has not had the chance. This happens with crate training, new environments, cold or rainy weather, or too much excitement.
Not producing urine: the bladder may be empty, or the puppy is trying to pee and cannot. This is the dangerous version.

A puppy who squats, strains, and produces only drops, or nothing at all, is not simply being stubborn. That pattern points to a physical problem.

When it is a training issue

If your puppy refuses to pee outside but pees normally indoors, the problem is usually timing, environment, or routine. Puppies get distracted by smells, other dogs, and noise. Some puppies will not pee on wet grass, gravel, or unfamiliar surfaces. Others need to walk in circles or sniff for a minute before they relax.

If your puppy is peeing in the house instead of outside, our guide to Puppy Peeing In House walks through the training steps. If the accidents happen mainly in the crate, see Puppy Peeing In Crate.

Main Causes of a Puppy Not Peeing

Cause	Typical clues	How urgent
Behavioral holding (stress, distraction, new place)	Puppy pees normally at home, holds it outside, no pain, normal appetite and energy	Routine, work on training
Urinary tract infection	Frequent small pees, straining, accidents in the house, strong odor, licking the vulva or penis	See a vet within 24 hours
Urinary blockage (stones, crystals, plug)	Straining with little or no urine, crying, pacing, hard or painful belly, vomiting	Emergency now
Dehydration or not drinking enough	Dry gums, skin that stays tented when pinched, lethargy, small amount of dark urine	Same day, emergency if severe
Kidney problem	Drinking a lot or not at all, vomiting, poor appetite, weight loss, urine output that drops or surges	Emergency or same day
Anatomic or structural problem	Persistent straining, dribbling, abnormal genital shape, symptoms that never fully resolve	Same day to urgent
Prostate or reproductive disease (older male dogs)	Straining to pee or poop, bloody urine, pain in the belly, urine leaking into the abdomen	Emergency now

Urinary tract infection

A urinary tract infection is one of the most common reasons a puppy pees oddly. Dogs with cystitis often show straining, blood in the urine, and accidents in the house. In a study of working dogs, cystitis and urinary stones caused overlapping signs that included painful urination, blood in the urine, and urinary retention [1]. Because the signs look alike, your veterinarian may need urine testing and imaging to tell them apart.

Urinary stones and crystals

Stones and crystals can block the flow of urine. Struvite and calcium oxalate are the two most common stone types in dogs [2]. Stone formation involves urine chemistry, urine pH, minerals, and infection, and newer work shows that immune cells and the traps they release also play a role in how stones grow [2]. A stone or crystal plug lodged in the urethra is the classic cause of a male dog who cannot pee at all.

Blockage of the urethra

A urethral obstruction is the emergency every owner should know about. The urethra is the tube that carries urine out of the body. When it is blocked, urine backs up, the bladder stretches, and waste products build up in the blood. This can damage the kidneys and become fatal within a day or two.

Blockages are not always caused by stones. Structural problems can compress or obscure the urethra. In one reported case, a dog had persistent straining to urinate because a mass and vaginal abnormality were pressing on and hiding the opening of the urethra, and the bladder was pushed out of its normal position [3]. Another report described a dog with straining and painful urination from prostate cancer, where urine leaked from the prostatic urethra into the abdomen [4]. These are uncommon causes, but they show why imaging matters when the signs do not clear up.

Dehydration and kidney problems

A puppy who is not drinking enough will not pee much. Vomiting, diarrhea, fever, and hot weather all increase water loss. Kidney injury is a more serious cause of low urine output. One report described a dog with acute kidney injury who had very low urine production that did not respond to fluids and diuretics, and who needed dialysis to recover [5]. If your puppy is vomiting, weak, or not drinking, that combination with low urine output needs urgent care.

Behavioral and training causes

Stress, a new home, travel, and changes in routine can all make a puppy hold urine. Some puppies also refuse to pee when they are overstimulated, such as at a busy park or a family gathering. This is the safest category, but you still need to rule out medical causes first, especially if the pattern is new.

Red Flags That Make It an Emergency

Go to an emergency clinic immediately if your puppy has any of these:

Straining to urinate for more than a few minutes with little or no urine coming out
Crying, whining, or yelping while trying to pee
A hard, distended, or painful belly
Vomiting, especially with straining to pee
Not peeing at all for 12 hours or more
Collapse, weakness, wobbling, or extreme sleepiness
Blood in the urine, or urine that looks like coffee
Panting heavily, drooling, or breathing fast with the urinary signs
A known history of stones or a previous blockage

A complete blockage is fatal if it is not relieved. Do not wait to see if it gets better overnight.

What You Can Safely Do at Home

While you wait for your appointment, or while you decide whether this is an emergency, these steps are safe.

Offer water freely

Do not restrict water. A puppy who is blocked may drink less, but limiting water will not fix a blockage and can make dehydration worse. If your puppy refuses water completely, that is a reason to call the vet now.

Take your puppy out on a calm, quiet schedule

Go out every 30 to 60 minutes with a young puppy. Use the same spot each time. Stand still and give your puppy 3 to 5 minutes to sniff and circle. Boredom and cold weather make puppies hold it, so keep the trip short and calm.

Check the bladder gently

With your puppy standing, place a flat hand on the lower belly just in front of the back legs. A full bladder feels like a firm, round water balloon. If your puppy cries, tenses, or the belly feels rock hard, stop and call your vet. Never press firmly on a full bladder.

Collect a urine sample if you can

A clean sample helps your vet a lot. Use a clean, shallow container and catch urine midstream. If you cannot get one, that is fine. Your vet can collect a sample in the clinic.

Keep a simple log

Write down the time of each potty trip, whether urine came out, how much, and what it looked like. Note water intake, appetite, energy, and any straining or crying. This history speeds up diagnosis.

Do not give human medications

Never give your puppy human pain relievers or antibiotics. Some common human drugs are toxic to dogs, and the wrong antibiotic can make a urinary infection harder to treat. Your veterinarian will calculate any medication dose from your puppy's weight and health.

If your puppy is peeing very often instead of not at all, our article on Dog Urinating Frequently: Causes and When to Call the Vet covers that pattern. If the problem is mostly about training and consistency, see Why Won't My Dog Potty Train.

What the Veterinarian Will Check

Your vet will start with a full physical exam. They will feel your puppy's bladder, check for pain, look at the gums for hydration, and check the genital area for discharge, swelling, or abnormalities.

Tests your vet may run

Urinalysis: checks for blood, protein, crystals, white blood cells, bacteria, and urine concentration. In dogs with urinary stones, urinalysis commonly shows protein and blood along with crystals [1].
Urine culture: identifies a bacterial infection and which antibiotic will treat it.
Blood work: checks kidney values, electrolytes, and red and white blood cell counts. Dogs with urinary stones often have changes in red cells, white cells, and protein levels on blood work [1].
X-rays: look for stones, bladder position, and masses. In one case, plain abdominal X-rays showed a soft-tissue mass that had pushed the bladder forward and narrowed the colon [3].
Ultrasound: shows the bladder wall, stones, sediment, and the kidneys. Ultrasound can also look for fluid or masses in the abdomen [4].
Contrast studies or advanced imaging: sometimes needed when the urethra is blocked by something that plain X-rays cannot show. In the reported case, a contrast study showed a widened urethra behind an obstructed opening [3].
CT or vaginoscopy: used in complicated cases to find structural causes of straining [3].

Treatment depends on the cause

Infection: antibiotics chosen for the specific bacteria, plus pain relief.
Stones: may pass with fluids and diet changes, or may need surgical or minimally invasive removal. One dog in a case report had a mass removed and the urethra widened, and normal urination returned for about 2 months [3].
Blockage: the vet must relieve the obstruction right away, often with a catheter, fluids, and monitoring. This is done under sedation or anesthesia.
Kidney injury: fluids, electrolyte correction, and sometimes dialysis. One dog with severe kidney injury and very low urine output needed three dialysis sessions before urine output increased [5].
Cancer or masses: depends on the type and location. Some cases are managed with surgery, some with medication, and some cannot be cured [4].

Prevention and Monitoring

Some urinary problems cannot be prevented, but you can lower the risk and catch problems early.

Always provide fresh water. Hydration keeps urine dilute and reduces the chance of crystals and stones forming.
Take your puppy out often. Young puppies need frequent trips. Do not expect a 10-week-old puppy to hold urine for 8 hours.
Do not punish accidents. Punishment makes puppies hide to pee, which leads to more accidents and more stress.
Keep the potty area consistent. Same spot, same surface, same routine helps puppies relax and go.
Watch for changes. A sudden increase in peeing, straining, blood in the urine, or accidents in a trained puppy all deserve a vet visit.
Follow up on infections. A urinary infection that is not fully treated can come back and can contribute to stone formation [2].
Ask about diet if your puppy has had stones. Some stone types are managed with specific diets, and your vet will choose based on the stone type found.
Keep routine wellness visits. Your vet can check urine at puppy visits and catch problems before they become emergencies.

Limitations and When to Contact a Veterinarian

This article cannot tell you whether your individual puppy has a blockage, an infection, or a training problem. Only a veterinarian who examines your puppy can do that.

Call your veterinarian the same day if your puppy is straining to pee, peeing small amounts very often, has blood in the urine, has accidents after being trained, or seems uncomfortable but is still eating and drinking.

Go to an emergency clinic now if your puppy has not peed in 12 hours, is straining with no urine coming out, has a hard or painful belly, is vomiting, is crying while trying to pee, or is weak, wobbly, or collapsed. Do not wait for a morning appointment.

Schedule a routine visit if your puppy is peeing normally but refuses to go outside, has accidents in the crate, or has a pattern you want to work through with your vet.

Frequently Asked Questions

How long can a puppy go without peeing?

A healthy young puppy usually needs to pee every 1 to 2 hours while awake, and most can hold it for about one hour per month of age overnight, up to a limit. A puppy who has not peed for 12 hours, or who is trying and cannot, needs veterinary care right away.

Why does my puppy refuse to pee outside but pees inside?

This is usually a training and environment issue, not a medical one. Puppies get distracted, dislike certain surfaces, or have not yet learned that outside is the place to go. Take your puppy out on a strict schedule, use the same spot, reward immediately after they go, and clean indoor accidents with an enzymatic cleaner.

Can a puppy have a urinary blockage?

Yes, and it is most common in male puppies because their urethra is longer and narrower. Signs include straining, crying, squatting with no urine, a hard belly, and vomiting. A blockage is a life-threatening emergency and needs immediate treatment.

Is it normal for a puppy to pee uncontrollably?

Not usually. Uncontrolled peeing can happen with excitement, fear, or submissive urination, which is common in young puppies and often improves with age and calm handling. It can also point to a urinary infection or another medical problem, so mention it to your vet if it is frequent or new.

Should I withhold water to stop my puppy from having accidents?

No. Withholding water can cause dehydration and does not fix the underlying problem. Instead, offer water freely and take your puppy out more often, including a final trip right before bed. If your puppy is drinking much more or much less than usual, call your vet.

References

Comprehensive diagnostic evaluation of urolithiasis and cystitis in K9 dogs in Iraq: Clinical, laboratory, and imaging correlates. Open veterinary journal, 2025.
Neutrophil Extracellular Traps Promote Urolithiasis Formation in Dogs: A Preliminary Study. Animals : an open access journal from MDPI, 2026.
Hydrocolpos in a mixed-breed dog: a case report. Frontiers in veterinary science, 2026.
A Case of Prostatic Lymphoma in a Dog with Symptoms of a Uroperitoneum Evaluated with Ultrasonography and Fluoroscopy. Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association, 2025.
Resolution of Noncardiogenic Pulmonary Oedema and Suspected Uraemic Pneumonitis in a Dog With Acute Kidney Injury Treated by Haemodialysis. Veterinary medicine and science, 2026.