SYMPTOM
Excessive vocalisation
Barking, howling, meowing, or crying at a frequency or intensity beyond established patterns for the individual.
Pain or Physical Discomfort
Increased vocalisation may be associated with acute or chronic pain from a range of sources. Animals experiencing musculoskeletal discomfort, abdominal pain, urinary tract issues, or dental problems may vocalise more frequently, particularly when certain positions or movements provoke or intensify the discomfort. The vocalisation may not always be directly timed to the painful event and can sometimes appear unprovoked.
Cognitive or Neurological
Changes in brain function, including age-related cognitive decline, can alter vocalisation patterns. Animals with cognitive dysfunction may vocalise at unusual times, particularly during the night, and may appear disoriented or unaware that they are vocalising. Neurological conditions affecting the brain's processing centres may similarly produce vocalisation changes that seem disconnected from obvious external triggers.
Anxiety or Emotional Distress
Separation anxiety, noise phobias, generalised anxiety, and situational stress can all manifest through increased vocalisation. The vocalisation often follows patterns related to specific triggers — occurring when left alone, during storms, in unfamiliar environments, or in response to changes in household routine. The emotional component may be reinforced by learning and past experiences.
Sensory Decline
Progressive loss of hearing or vision can lead to increased vocalisation, particularly in older animals. An animal that can no longer hear itself may vocalise more loudly or frequently without apparent awareness. Vision loss may produce vocalisation associated with disorientation, especially in dim lighting or unfamiliar spaces where the animal feels less confident navigating.
Hormonal or Reproductive
Intact animals may show increased vocalisation related to reproductive cycles. Cats in particular can display markedly increased and distinctive vocalisation patterns during oestrus. Hormonal fluctuations in intact animals of both species can influence vocal behaviour in ways that may be cyclical or seasonal.
Attention-Seeking or Learned Behaviour
Some vocalisation patterns may develop or intensify through reinforcement — when an animal learns that vocalising produces a desired response such as food, attention, or access to specific areas. These patterns can become deeply established over time and may be difficult to distinguish from vocalisation driven by underlying physical or emotional causes without careful observation of the context and timing.
Why timing matters
Early observation
When excessive vocalisation first emerges as a new behaviour, it may represent a response to a recent change — a new source of discomfort, an environmental shift, or the early stages of a developing condition. At this point, the pattern of vocalisation can provide particularly useful context: whether it occurs at specific times of day, in particular locations, in response to identifiable triggers, or seemingly without provocation. Early vocalisation changes are often more clearly linked to their underlying cause before compensatory behaviours or learned patterns have had time to develop.
Later presentation
Vocalisation that has persisted over weeks or months may have evolved from its original pattern. What began as pain-related calling may become habitual, or anxiety-driven vocalisation may intensify as the animal's stress response becomes more sensitised over time. Chronic vocalisation can disrupt household sleep patterns and relationships, adding a layer of human stress that the animal may detect and respond to, potentially creating a feedback cycle. Secondary behavioural changes often develop alongside persistent vocalisation, including altered sleep-wake patterns and changes in social behaviour.
The evolution of excessive vocalisation often reflects the trajectory of its underlying cause. Pain-related vocalisation may increase in frequency or intensity as a condition progresses, or it may change character — shifting from brief vocalisations to more sustained crying. Cognitive-related vocalisation tends to gradually worsen over months, often with a distinctive pattern of nighttime calling that progressively disrupts normal sleep cycles. Anxiety-related vocalisation may fluctuate with environmental factors but can generalise to more triggers over time if the underlying anxiety deepens.
Conditions commonly associated
Separation Anxiety in Dogs
The distress dogs experience when separated from their owner can be expressed vocally, with barking, howling, or whining reflecting the underlying anxiety.
Canine Cognitive Dysfunction
Age-related changes in brain function can disrupt normal sleep-wake cycles and spatial awareness, leading affected dogs to vocalise more, particularly at night or when disoriented.
Feline Cognitive Dysfunction
Declining brain function associated with ageing can affect a cat's awareness of its surroundings and sleep patterns, often resulting in increased vocalisation, especially at night.
Anxiety Disorders in Cats
Excessive vocalisation may develop in anxious cats, particularly those experiencing separation anxiety, manifesting as persistent yowling, crying, or calling during periods of distress.
Syringomyelia (CM/SM)
Vocalisation in CM/SM may reflect sudden pain episodes or discomfort from neuropathic sensations.
Aortic Thromboembolism in Cats
The sudden, severe pain of tissue starved of blood supply in the hind legs often makes cats cry out.
Excessive Vocalisation in Cats
Older cats affected by this condition often cry out repeatedly, particularly overnight, as cognitive changes disrupt their normal sleep-wake pattern.
Fear Aggression in Dogs
Growling or barking at an approaching trigger typically serves as a warning signal that can precede a fear-driven aggressive response.
Feline Hyperesthesia Syndrome
Sudden crying or yowling can accompany an episode as the skin along the back becomes acutely sensitive.
Maternal Aggression in Dogs
Growling or barking when anyone approaches the puppies is a common expression of maternal aggression as the mother defends her litter.
Pain-Related Aggression in Dogs
A dog protecting a painful area may growl, snap or yelp when touched or approached near that spot.
Resource Guarding in Dogs
Growling or snarling when someone approaches a valued item, food bowl or resting spot can reflect resource guarding, where the dog is trying to protect something it perceives as worth defending.
Storm Phobia in Dogs
Distress during a storm can prompt whining, barking or howling that settles once the weather clears.
When to explore further
Vocalisation that occurs primarily at night, particularly in older animals, and is accompanied by apparent confusion, pacing, or staring at walls, may suggest a cognitive component rather than a purely emotional or pain-driven cause. This nighttime pattern is often one of the earliest signs noted by owners in age-related cognitive changes.
A sudden onset of increased vocalisation in an animal that was previously quiet may warrant attention, particularly if it coincides with other changes such as altered movement patterns, changes in appetite, differences in posture, or reluctance to perform previously normal activities. Abrupt behavioural changes more often reflect a new physical trigger.
Vocalisation that intensifies when the animal is handled, lifted, or adopts certain positions may suggest that specific movements or postures are producing discomfort. Noting which interactions provoke vocalisation can help characterise whether a particular body region is involved.
When vocalisation occurs exclusively or predominantly during owner absence and is accompanied by other signs of distress such as destructive behaviour, elimination indoors, or attempts to escape, the pattern may reflect separation-related anxiety rather than a physical cause.
Vocalisation accompanied by other neurological signs — such as head tilting, circling, loss of balance, or changes in pupil size — may suggest involvement of the nervous system rather than a purely behavioural or pain-related origin.
Building an understanding of excessive vocalisation benefits from careful observation of its context, timing, and associated behaviours. Recording when vocalisation occurs, how long episodes last, what seems to precede them, and whether any particular interventions appear to influence the pattern can create a detailed picture over time. Given that vocalisation can arise from such diverse underlying causes — from physical discomfort to cognitive change to emotional distress — the contextual details surrounding the behaviour often prove as informative as the vocalisation itself.
Last reviewed: 24 April 2026 · Dr Alastair Greenway MRCVS