Cat Incontinence: Causes and Treatment Options

Name: Cat Incontinence: Causes and Treatment Options
Creator: Dr. Zubair Khalid

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

Leaking urine in a cat is a medical sign, not a behavior problem, and how to treat cat incontinence depends entirely on what is causing it. Some cats leak because the urethral sphincter cannot hold urine in, some because the bladder never empties, and some because of a birth defect or spinal injury. The first step is always a veterinary exam, because the treatment for each cause is different.

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

Quick Answer

A cat who drips urine while resting or sleeping is usually incontinent, while a cat who sprays urine on walls or furniture is usually marking. These need different workups.
A cat who strains to urinate, cries, or produces no urine at all may have a urinary blockage. That is an emergency, not incontinence.
True incontinence often points to urethral sphincter incompetence, which is the most common cause of leaking urine in animals [1].
No drug is approved to treat incontinence in animals, so veterinarians use compounded human medications or surgery when appropriate [1].
Many cats improve with a combination of medication, weight management, and simple home changes, but some need imaging and surgery to control the leaking.

What Cat Incontinence Actually Means

Incontinence means a cat cannot control when urine leaves the body. The bladder may be full and the sphincter may be too weak to hold it closed, or the bladder may never empty properly and urine overflows. The cat is not being bad. It often has no idea it is leaking.

This is different from two other problems that owners often confuse with incontinence.

Urine marking is a deliberate behavior. A cat backs up to a vertical surface, holds the tail high, and sprays a small amount of urine. Marking is common in intact males and in cats who feel stressed or threatened. It is a behavioral and hormonal issue, not a sphincter problem.

Urinary blockage is a physical obstruction of the urethra. The cat tries to urinate, strains, cries, and may produce only drops or nothing at all. This is a life-threatening emergency, especially in male cats. If your cat is straining with no urine, call an emergency clinic right away.

Some cats have both problems at once. A cat with a long history of urinary tract disease can develop both inflammation and a weak sphincter. That is why a full exam matters.

Signs Owners Notice

The signs of incontinence are usually easy to spot once you know what to look for.

Wet patches on bedding, cat beds, or the floor where the cat was sleeping
Urine dribbling down the back legs or soaking the fur around the rear
A strong urine smell on the cat
Red, irritated, or scalded skin around the vulva, prepuce, or inner thighs
Licking the genital area more than usual
Finding wet spots in the carrier or on the way home from the vet

Some cats also show signs of the underlying disease. A cat with spinal problems may have weak back legs, wobble when walking, or drag the paws. A cat with a urinary tract infection may urinate small amounts often and seem uncomfortable. A cat with a birth defect may have abnormal genital anatomy that a veterinarian can see on exam.

One case report described a 10-month-old female cat with incontinence and repeated bladder infections since 2 months of age. On exam she had an underdeveloped vulva, and imaging showed a structural problem in the urinary and genital tract [2]. That is a reminder that young cats with leaking since kittenhood often have a congenital cause.

Causes and Risk Factors

Incontinence has many causes, and they fall into a few broad groups.

Urethral sphincter incompetence. This is the most common cause of incontinence in animals, and it happens when the muscle that holds urine in the urethra does not close tightly enough [1]. It is seen most often in large-breed spayed female dogs, but it can happen in cats too, including males and intact females [1]. Hormone changes after spaying can weaken urethral closure over time [1].

Congenital and structural problems. Some cats are born with abnormal urinary or genital anatomy. Genitourinary dysplasia and persistent urogenital sinus are two examples. In one report, a 5-month-old female cat had continuous incontinence and blood in the urine, and imaging showed no separate urethra or vagina, only a single channel from the bladder to the vulva [3]. These cases usually need surgery.

Spinal and neurologic disease. Nerves control the bladder and sphincter. When those nerves are damaged, a cat can leak or retain urine. A case report described a cat with a spinal defect called a meningomyelocele who leaked small amounts of urine and never fully emptied the bladder [4]. Other spinal injuries, disc disease, and tumors can do the same thing.

Surgery and trauma. Cats who have had urethral surgery or trauma can leak afterward. One report described a male cat with a 7-year history of incontinence and severe urine scalding after a prepubic urethrostomy done for a urinary injury at 5 months of age [5]. Recurrent urethral obstruction is another reason cats need surgery, and a modified perineal urethrostomy technique in 30 male cats allowed all of them to urinate on their own within 48 hours, with no persistent incontinence reported afterward [6].

Urinary tract disease and infection. Inflammation from feline lower urinary tract disease, bladder stones, or infection can cause urgency and dribbling. These cats often need treatment for the underlying urinary problem. You can read more about that in Cat Uti Treatment and Treatment Of Urinary Tract Infection In Cats.

Other risk factors. Being female and spayed raises the risk of sphincter-related leaking [1]. Age, body condition, and a history of urinary blockage or urinary surgery also matter. Constipation can play a role too, because a full colon presses on the bladder and can worsen leaking. If your cat strains to poop as well, see Cat Constipation: What Should You Do?.

Cause	Typical clue	First step
Urethral sphincter incompetence	Dribbling while resting, often in a spayed female	Exam, urine test, trial of medication
Congenital defect	Leaking since kittenhood, abnormal genital shape	Imaging, possible surgery
Spinal or nerve disease	Weak back legs, wobbling, poor tail tone	Neurologic exam, MRI
Urinary infection or inflammation	Frequent small urinations, blood, straining	Urine culture and urinalysis
Post-surgical or trauma	Leaking after urethral surgery or injury	Exam, imaging, possible device or revision

How It Is Diagnosed

Your veterinarian starts with a full history. When did the leaking start? Does it happen only when the cat sleeps? Does the cat strain to urinate? Has the cat had urinary surgery or a blockage before?

The physical exam checks the bladder size, the genital area, the skin around the rear, and the nervous system. A veterinarian may press on the bladder to see if the cat can hold urine, and may check the anal and tail tone to look for nerve problems.

Testing usually includes:

Urinalysis and urine culture to rule out infection and check urine concentration
Blood work to check kidney function and general health
Imaging such as X-rays or ultrasound to look at the bladder, stones, and anatomy
Contrast studies, which use dye to outline the urinary tract, when a structural problem is suspected [2][3]
CT or MRI when a spinal or congenital cause is possible [2][3][4]

A neurologic exam is important when the cat has weak legs or a strange walk. In the meningomyelocele case, the cat had progressive weakness in the back legs, muscle loss, and a painful mass over the spine, and MRI showed the spinal defect [4]. Without that imaging, the incontinence could have been blamed on the bladder alone.

How to Treat Cat Incontinence

Treatment depends on the cause. There is no single pill that fixes every cat.

Medication

No drugs are approved to treat incontinence in animals, and many human products once used for this purpose have been removed from the market because of safety concerns [1]. Some estrogen compounds and alpha-adrenergic receptor agonists may still be available to veterinarians through compounding pharmacies [1]. Your veterinarian calculates the dose from your cat's weight and health, and monitors response and side effects. Never give your cat a human medication without veterinary guidance.

Surgery and devices

Surgery can help when the problem is structural or when medication fails.

Cystourethroplasty with an artificial urethral sphincter. In one cat with genitourinary dysplasia, medical treatment did not work, but surgery combining these two procedures led to marked improvement, and near-total continence was reached after several device adjustments and held at 10 months after surgery [2].
Hydraulic occluder. A cat with a 7-year history of leaking after a prepubic urethrostomy had a hydraulic occluder placed around the shortened urethra. The device was inflated gradually over about 13 weeks, and it controlled the leaking and improved the cat's quality of life [5].
Urethral plication. A 5-month-old cat with a suspected partial persistent urogenital sinus regained voluntary urination right after surgery and stayed continent for 741 days without an artificial sphincter [3].
Perineal urethrostomy. This surgery is used for male cats with repeated urethral blockage. In a review of 30 cats, all resumed urinating on their own within 48 hours, and none had lasting incontinence afterward [6].

These are specialized procedures. Not every clinic offers them, and a referral to a surgical specialist may be needed.

Bladder management and nursing care

Some cats need help emptying the bladder. Your veterinarian may teach you to express the bladder by hand or to catheterize at home. This is common with spinal disease, where the bladder does not empty on its own.

Good skin care matters. Urine burns skin. Keep the rear end clean and dry, use a barrier ointment if your vet recommends one, and check for redness or sores daily. A cat with severe scalding can be in real pain, as the hydraulic occluder report described [5].

Managing the home

Provide easy access to several litter boxes, including low-sided boxes for cats with weak legs.
Keep bedding washable and use waterproof pads.
Keep the cat at a healthy weight. Extra weight raises pressure on the bladder.
Treat constipation if it is present, since a full colon can worsen leaking.
Reduce stress with routine, quiet spaces, and pheromone products if your vet suggests them.

If your cat also has repeated urinary infections, see Treating Urinary Tract Infection In Cats for more on that side of care.

Recovery, Outlook, and Long-Term Management

The outlook depends on the cause. Cats with sphincter incompetence often improve with medication, though some need dose changes over time. Cats with congenital defects or spinal disease may need surgery, and some never regain full control.

Continence can take weeks to improve. In the hydraulic occluder case, the device was inflated slowly over about 13 weeks before control was achieved [5]. In the artificial sphincter case, several adjustments were needed before near-total continence was reached [2]. Plan for follow-up visits and patience.

Long-term care usually means:

Regular rechecks to check urine, skin, and medication response
Periodic urine cultures if your cat has had repeated infections
Ongoing weight and diet management
Home setup that protects skin and reduces stress
A plan for what to do if leaking gets worse

Many cats with incontinence live full, comfortable lives with management. The goal is not always a perfectly dry cat. The goal is a cat who is comfortable, infection-free, and not in pain.

Prevention

You cannot prevent every cause of incontinence, especially congenital ones. But you can lower some risks.

Keep your cat at a healthy weight.
Do not delay treatment for urinary blockage or infection.
Follow your vet's advice after any urinary surgery.
Watch for early signs of spinal problems, such as wobbling or weakness in the back legs.
Keep litter boxes clean and easy to reach.
Schedule routine exams, especially for spayed females and senior cats.

Limitations and When to Contact a Veterinarian

No article can tell you what is wrong with your cat. Individual cases need a veterinarian who can examine your cat, run tests, and set a treatment plan.

Call an emergency clinic now if your cat is straining to urinate and producing little or no urine, crying out, vomiting, or acting very lethargic. A blocked cat can die within a day or two without treatment.

Contact your veterinarian the same day if you see blood in the urine, a sudden change in urination, a swollen or painful belly, or new weakness in the back legs.

Schedule a routine visit soon if your cat has been leaking for more than a day or two, has urine-soaked fur, or has red or irritated skin around the rear.

Frequently Asked Questions

Is leaking urine always a urinary tract infection?

No. Infection is one cause, but sphincter weakness, birth defects, spinal disease, and prior surgery are common too. A urine test helps sort this out, and treatment differs a lot depending on the answer.

Can cat incontinence go away on its own?

Sometimes, if the cause is temporary inflammation or a mild infection that gets treated. Structural and neurologic causes usually do not resolve without specific treatment. If leaking lasts more than a day or two, get your cat checked.

Do I need to worry if my cat only leaks while sleeping?

Leaking during rest is a classic sign of a weak urethral sphincter, which is the most common cause of incontinence in animals [1]. It still deserves a veterinary visit, because the treatment plan depends on the exact cause.

Will my cat need surgery?

Not always. Many cats improve with medication, bladder care, and home changes. Surgery is usually reserved for structural problems, failed medical treatment, or specific spinal and urinary conditions.

Can I use human incontinence pads or diapers on my cat?

Some owners use pet diapers for short trips or overnight, and they can help protect bedding. They are not a treatment, and they can cause skin irritation if left on too long. Ask your veterinarian before using them, and keep the skin clean and dry.

References

Pharmacotherapeutics in Urinary Incontinence in Dogs and Cats - Pharmacology. Merck Veterinary Manual.
Combined cystourethroplasty and urethral sphincter occluder placement for treatment of urinary incontinence in a cat with genitourinary dysplasia. The Journal of small animal practice, 2024.
A feline case of suspected partial persistent urogenital sinus successfully managed by urethral plication alone. JFMS open reports, 2026.
Case Report: Surgical management of a meningomyelocele in a cat. Frontiers in veterinary science, 2026.
Use of a hydraulic occluder to control urinary incontinence in a cat after prepubic urethrostomy for post-trauma urethral injury. JFMS open reports, 2025.
Clinical evaluation of a modified perineal urethrostomy technique in 30 cats: a retrospective observational study. Journal of feline medicine and surgery, 2026.