SYMPTOM
Vocalisation during urination
Crying, meowing, or making sounds of discomfort while posturing to urinate or during urination.
Lower urinary tract inflammation
Inflammation of the bladder or urethra is one of the most common reasons an animal may vocalise during urination. The inflamed tissue becomes hypersensitive, and the act of passing urine, which stretches and contracts the bladder wall and urethra, can cause significant discomfort. In cats, feline lower urinary tract disease (FLUTD) encompasses a spectrum of conditions that can produce this sign, including idiopathic cystitis where no specific underlying disease is identified. The vocalisation may range from subtle whimpering to overt crying and tends to occur at the moment of active urine flow or during straining attempts.
Urinary tract infection
Bacterial infection of the bladder or urethra causes inflammation and irritation of the mucosal lining, making urination painful. The infection creates a cycle of frequent attempts to urinate and discomfort that can prompt vocalisation each time the animal attempts to pass urine. Urinary tract infections are more common in female dogs due to anatomical factors, though they can affect any animal. In cats, bacterial infections are relatively uncommon and are seen less often than idiopathic cystitis, with cats aged 10 years or more at increased risk.
Urinary calculi or crystals
Stones or crystalline material within the bladder or urethra can cause significant pain during urination through direct irritation of the urinary tract lining or partial obstruction of urine flow. As urine passes over or around these structures, the mechanical friction and pressure changes can trigger acute discomfort. The size, number, and location of calculi influence the degree of pain, with urethral stones often causing more intense discomfort than bladder stones due to the narrower passage. Crystals on their own are microscopic and are not associated with pain unless they combine into stones or become part of a urethral plug, and crystals in a urine sample can be an incidental finding.
Urethral obstruction or partial blockage
Partial or complete obstruction of the urethra creates intense pressure as the bladder contracts against a blocked or narrowed passage. This can be profoundly uncomfortable and may prompt loud vocalisation. In cats it occurs almost exclusively in males, where the narrow urethra can be blocked by a plug of proteins, cells, crystals and debris, by a stone lodged in the urethra, or by swelling and spasm of the urethral wall. The animal may cry out, strain visibly, lick around the genital area, and make repeated attempts to urinate that produce nothing. A complete blockage is a different order of problem from painful urination: no urine leaves the bladder, and without treatment it can cause kidney failure and can be fatal within 2 to 3 days. The time from complete blockage to death may be less than 24 to 48 hours, and the point at which a blockage became complete cannot be known at home. With complete obstruction, vomiting, dehydration, a low body temperature and severe depression develop rapidly, and a raised blood potassium can slow the heart or disturb its rhythm. Even partial obstruction can cause significant discomfort as the increased pressure required to force urine through the narrowed passage stretches and irritates the urethral walls.
Prostatic conditions
In sexually intact male dogs, inflammation of the prostate gland (prostatitis) can make urination painful, because the prostate surrounds the urethra. Acute prostatitis is described as causing malaise, severe abdominal pain and fever, so vocalisation during the posturing and straining of urination may be one part of a dog that is unwell overall. Benign enlargement of the prostate, the most common prostatic disorder of intact male dogs, is typically non-painful, and tends to show as blood in the urine or a blood-stained discharge from the prepuce rather than as crying.
Neoplasia of the urinary tract
Tumours affecting the bladder, urethra, or surrounding structures can cause pain during urination through tissue invasion, obstruction, or chronic inflammation. Transitional cell carcinoma is the most frequently diagnosed malignant tumour of the lower urinary tract in both dogs and cats, although these tumours are uncommon in dogs and rare in cats, and it is frequently located at the trigone, the region where the ureters enter and the urethra exits the bladder. This location means that even relatively small growths can interfere with urine flow and cause significant discomfort. Vocalisation during urination in an older animal, particularly when accompanied by blood in the urine or progressive straining, may reflect the presence of a mass within the urinary tract.
Why timing matters
Early observation
When vocalisation during urination is first observed, it often reflects acute or recently developed discomfort in the urinary tract. Early episodes may be intermittent: the animal may vocalise during some urination attempts but not others, depending on the degree of bladder distension, the concentration of the urine, and the severity of the underlying irritation. In some cases, the vocalisation may accompany other early signs such as increased frequency of urination, visible straining, or changes in the location where the animal chooses to urinate. The first occurrence is often the most noticeable to owners, as the sound is typically unusual and attention-catching. The early stage is not a guide to how serious the cause is: in a male cat, the first episode of crying and straining can already be a blocked urethra.
Later presentation
If vocalisation during urination persists or worsens over days to weeks, the underlying process may be progressing or becoming more entrenched. Chronic urinary discomfort can lead to behavioural changes beyond vocalisation, including avoidance of the litter tray or usual urination spot, house-soiling, excessive licking of the genital area, and reduced overall activity. In cats, persistent urinary pain can contribute to stress-related behavioural changes that compound the original problem, creating a cycle of inflammation, stress, and worsening symptoms. Changes in urinary habits can also persist even after the original cause is addressed.
The trajectory of vocalisation during urination depends significantly on the underlying cause. Acute bacterial infections may produce sudden-onset vocalisation that resolves relatively quickly with appropriate treatment. Idiopathic cystitis in cats often follows a relapsing-remitting pattern, with episodes of painful urination alternating with periods of apparent normality. Obstructive conditions follow the fastest course: once the urethra is completely blocked, signs of kidney failure develop rapidly, and without treatment the condition can be fatal within 2 to 3 days, with death possible less than 24 to 48 hours after the blockage becomes complete. Neoplastic causes tend to produce a gradually worsening trajectory, with the discomfort becoming more consistent and intense over weeks to months. Understanding the temporal pattern (whether the vocalisation is constant, intermittent, worsening, or cyclical) can provide valuable context about the nature of the underlying process.
Conditions commonly associated
Feline Idiopathic Cystitis
Inflammation of the bladder wall in feline idiopathic cystitis makes the bladder more sensitive, so contractions during urination become painful and cats vocalise as they strain to pass urine.
Urinary Tract Infection in Dogs
Urinary tract infection can produce discomfort during urination that some dogs vocalise in response to. The pain arises from inflammation and spasm of the bladder wall and urethral mucosa during the passage of urine.
Urinary Stones (Urolithiasis)
Vocalisation during urination may occur with urinary stones as the passage of urine over irritated bladder mucosa or through a partially obstructed urethra produces pain.
Phimosis and Paraphimosis
Pain from a trapped or swollen penis can make urination uncomfortable enough to cause vocalising.
Urethral Obstruction
A blocked urethra, which in cats occurs almost exclusively in males, produces crying and straining with little or no urine passed, and without treatment can cause kidney failure and can be fatal within 2 to 3 days, with death possible less than 24 to 48 hours after the blockage becomes complete.
When to explore further
When vocalisation during urination is accompanied by visible blood in the urine, the combination of pain and haematuria suggests active inflammation, irritation, or tissue damage within the urinary tract. Blood may appear as pink-tinged urine, distinct red drops, or dark discolouration, and its presence alongside vocalisation indicates that the urinary tract lining is being compromised in some way.
When the animal is making frequent attempts to urinate but producing only small volumes or no urine at all, this pattern of non-productive straining alongside vocalisation may indicate obstruction or severe inflammation, and the two cannot be told apart by watching. In a male cat, straining, crying and producing little or no urine is the recognised picture of a blocked urethra, which can be fatal within 2 to 3 days without treatment, and may be fatal less than 24 to 48 hours after the blockage becomes complete. The straining is easily mistaken for constipation, and whether the bladder is emptying cannot be judged from the litter tray alone.
When vocalisation during urination continues from one urination to the next, the pain is a sign of disease in the urinary tract, whatever its duration. Episodes of feline idiopathic cystitis tend to come on quickly and ease over 5 to 10 days, only to recur, but stones, infection and a partly blocked urethra produce the same crying and straining, and the causes cannot be separated at home. The length of an episode is not a measure of safety: a male cat can stop passing urine at any point during it. A complete blockage can then be fatal within 2 to 3 days without treatment, and death may come less than 24 to 48 hours after the blockage becomes complete.
When the vocalisation is accompanied by changes in the animal's general demeanour, such as lethargy, reduced appetite, hiding, or reluctance to move, these systemic signs suggest the discomfort may be affecting overall wellbeing beyond the urinary tract alone. A combination of urinary pain and general malaise can indicate a more significant process than isolated lower urinary tract irritation. In a cat that is straining without passing urine, vomiting, refusing food and seeming depressed are listed signs of a blocked urethra, and reflect waste products building up in the blood.
When an animal that has previously experienced episodes of urinary discomfort begins vocalising during urination again after a period of normality, this recurrence may indicate a relapsing condition or a new process developing. Recurrent episodes may follow a recognisable pattern in some animals, and understanding the frequency and triggers of recurrence can help build a clearer picture of the underlying situation.
Observing the full context of vocalisation during urination (including when it occurs, how frequently, what the urine looks like, and whether other behaviours have changed) can help build a comprehensive picture of the animal's experience. Many owners find it helpful to note the timing of episodes, the volume of urine produced, and any changes in urination location or frequency. Each animal's urinary tract health is influenced by individual factors including anatomy, diet, hydration, stress levels, and underlying conditions, making careful observation of the specific pattern particularly valuable. The observation that separates a painful but open urinary tract from a blocked one is whether urine is being passed, and repeated visits to the litter tray that produce a few drops or nothing can look much like frequent urination. A record of how the pattern changes over time is useful background for the other causes, but it does not answer that question.
Last reviewed: 10 October 2026 · Dr Alastair Greenway MRCVS