SYMPTOM
Cold paws or ears
Owners notice the paws, ear tips, or nose feeling notably cool to the touch compared with the rest of the body, sometimes alongside pale or bluish gums or pads, reduced enthusiasm for activity, or, in cats, sudden reluctance to bear weight on hind legs that also feel cold.
Normal Peripheral Variation
Ears, paws and the nose are thin or exposed, with a high surface-area-to-volume ratio, so they cool and warm more readily than the trunk in response to ambient temperature, recent activity, or simply lying still. This is a common and usually unremarkable finding, particularly in cool weather or shortly after a walk or bath.
Reduced Cardiac Output
When the heart's forward output is reduced, less warmed blood reaches the periphery, and paws, ears, and the tail can feel cool. This is a late sign, seen when output has fallen markedly, and it is usually accompanied by weakness, reduced stamina, pale gums or faster breathing at rest. Most dogs with heart disease never have cool extremities, so their absence is not a sign that the heart is coping.
Arterial Obstruction (Cats)
A blood clot, most often arising from underlying heart disease, lodges in an artery and abruptly cuts blood supply to a limb. The terminal aorta is the usual site, affecting both hind limbs, but one hind limb or a single front limb can be affected. The onset is sudden, often over minutes. Severe pain is typical, with crying out, cold pale or bluish pads, and weakness or complete loss of use of the affected limb. When the artery is only partly blocked, the signs can be milder, so a cold, weak or unusable limb in a cat can still reflect a clot even when the cat is not crying out. Around half of affected cats also have heart failure at the time, which can show as rapid or laboured breathing. Fewer than half survive to leave hospital, a low body temperature is associated with a poorer outcome, and whether blood flow to the limb is returning cannot be judged at home.
Metabolic Slowing
A lowered metabolic rate reduces heat generation and can leave the extremities persistently cool even in a warm environment. This usually develops alongside other signs such as weight gain, coat thinning, or lethargy rather than appearing in isolation.
Anaemia
A significant reduction in circulating red blood cells lowers the blood's oxygen-carrying capacity and prompts the body to preferentially direct blood flow towards core organs. Peripheral tissues, including the paws and ears, can feel cool as a result of this redirection.
Adrenal Insufficiency
Impaired regulation of blood pressure and fluid balance can reduce peripheral perfusion, leaving paws and ears cool to the touch. This is typically accompanied by more general, often vague signs such as lethargy, reduced appetite, or intermittent gastrointestinal upset. It can also present as a crisis that can become life-threatening over hours, with collapse, weakness, pale gums, a weak pulse, low body temperature and sometimes a slow heart rate.
Reduced Circulating Volume or Widespread Vasoconstriction
Significant fluid loss from prolonged vomiting or diarrhoea, blood loss, or a body-wide response to severe illness or injury redirects blood away from the extremities to protect core organs, and cold paws or ears can be an early sign of this redirection. When this develops alongside weakness, rapid breathing, pale gums, or reluctance to rise, it is the pattern of circulatory shock, which can progress to collapse over minutes to hours. Bleeding into the abdomen or chest leaves no visible wound.
Low Body Temperature (Hypothermia)
When the whole body is cold rather than only the extremities, the paws and ears are often where it is first noticed. Newborn puppies and kittens cannot regulate their own temperature for the first few weeks and lose heat quickly when separated from the mother or litter. Small, elderly and thin animals, pets that have been wet or outdoors in cold weather, and animals recovering from an anaesthetic or sedation are also prone to heat loss, and serious illness can lower body temperature too. Shivering and curling up are typical at first. As body temperature falls further, many animals stop shivering and become quiet, stiff, uncoordinated or unresponsive, with slowed breathing and heart rate, so the absence of shivering is not reassurance.
Why timing matters
Early observation
Occasional coolness of the ear tips or paw pads, particularly in cold weather, after a bath, or when a pet has been resting rather than moving, is a common and usually unremarkable finding reflecting normal peripheral blood flow patterns.
Later presentation
Coldness that is persistent regardless of ambient temperature or activity, that affects multiple extremities simultaneously, or that develops suddenly alongside pain or loss of limb function represents a different category of finding tied to circulation, systemic perfusion, metabolic rate or core body temperature.
Reduced perfusion from chronic heart disease in dogs usually builds gradually as the underlying condition worsens, but a fall in cardiac output can also happen abruptly, for example when fluid builds up rapidly around the heart, and cats can present abruptly when a clot obstructs blood flow. The speed of onset and whether the change is generalised or confined to one limb both carry diagnostic relevance.
Conditions commonly associated
Aortic Thromboembolism in Cats
A clot lodging in the terminal aorta abruptly cuts blood supply to the hind limbs, usually producing severe pain, cold pale or bluish pads and sudden loss of use of the hind limbs. A partial blockage can cause milder signs. Less often the clot lodges in the artery to a single limb, which can be a front leg.
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Hypertrophic Cardiomyopathy in Cats
The heart disease most commonly underlying feline aortic thromboembolism, predisposing to clot formation that leads to cold extremities.
Congestive Heart Failure in Dogs
Reduced forward blood flow lowers perfusion to peripheral tissue, and cool paws and ears tend to appear late, when output has fallen markedly, usually alongside weakness, pale gums, faster breathing at rest or collapse.
Mitral Valve Disease in Dogs
Advanced valve disease with heart failure can reduce forward output enough to cool the extremities, but most dogs with mitral valve disease never show this sign, so warm paws say little about the state of the heart.
Dilated Cardiomyopathy in Dogs
Impaired heart muscle contraction can reduce the volume of blood reaching peripheral tissue. Cool extremities are a late finding in dilated cardiomyopathy, seen once output is markedly reduced and usually accompanied by other signs of low output such as weakness, fainting, pale gums or collapse.
Hypothyroidism in Dogs
A lowered metabolic rate reduces heat generation and can leave extremities persistently cool alongside other signs such as weight gain and lethargy.
Immune-Mediated Haemolytic Anaemia (IMHA)
Reduced oxygen-carrying capacity, combined with the body's redirection of blood flow towards core organs, can leave extremities notably cool.
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Addisons Disease in Dogs
Adrenal insufficiency can impair blood pressure regulation, reducing peripheral perfusion and leaving paws and ears cool to the touch, most markedly during an Addisonian crisis, when collapse and shock can develop over hours.
Pericardial Effusion
Fluid accumulation around the heart restricts its ability to fill and pump effectively, reducing peripheral perfusion in a manner similar to other cardiac causes. Unlike the gradual decline typical of chronic valve or heart-muscle disease, effusion caused by bleeding from a heart-based tumour such as haemangiosarcoma can accumulate over hours, so a cardiac cause of cold extremities is not always a slow-developing one.
Restrictive Cardiomyopathy in Cats
When the heart's chambers cannot relax and fill properly, forward blood flow can be compromised, and peripheral circulation to the paws and ears may be reduced, making these areas feel cool. This is part of a broader pattern of circulatory insufficiency that can accompany restrictive heart disease in cats.
Hyperthyroidism in Cats
Hyperthyroidism is a recognised risk factor for aortic thromboembolism, partly through thickening of the heart muscle and possibly through changes in blood clotting, and this is the route by which it links to a sudden cold, painful limb. On its own, the raised metabolic rate increases heat production rather than cooling the paws or ears.
When to explore further
Cold paws that are limited to cool weather or follow time outdoors, and that warm again once the pet is indoors and active, most often reflect ordinary peripheral circulation rather than an underlying process.
In cats, sudden coldness of one or both hind paws, or of a single front paw, together with crying out, dragging of the limb or loss of its use, is the pattern of a clot blocking an artery. It comes on over minutes, is typically severely painful, and is often accompanied by rapid or laboured breathing from heart failure. Many affected cats die or are euthanised within the first 48 hours, a low body temperature is associated with a poorer outcome, and the pulses and blood flow that define this pattern cannot be assessed at home.
Coldness affecting the ears, paws, and tail together, alongside reduced energy, laboured breathing, or reluctance to lie down or settle, may relate to reduced cardiac output rather than ambient temperature; this pattern can build gradually with chronic heart disease or, when fluid accumulates rapidly around the heart, appear over hours.
Persistent cold extremities in a dog also showing weight gain, coat thinning, or lethargy may fit a broader metabolic pattern rather than a standalone finding.
Pale or bluish gums accompanying cold paws or ears extend the finding beyond simple peripheral coolness and add useful diagnostic weight, and this combination alongside weakness, rapid breathing, or reluctance to rise or stand is the pattern of circulatory shock. After blood or fluid loss this can progress to collapse over minutes to hours, and internal bleeding and the degree of volume loss cannot be judged at home.
A pet that feels cool over the trunk as well as the paws and ears, particularly a newborn puppy or kitten, an elderly or thin animal, one that has been wet or out in the cold, or one recovering from an anaesthetic, may have a low core temperature. A pet that has stopped shivering and become quiet, stiff or hard to rouse is at the more advanced end of that pattern, and core temperature cannot be judged reliably by touch.
Comparing paw and ear temperature against the trunk at a consistent time of day, rather than only when a change is first noticed, helps establish whether coolness is a new or longstanding pattern. Noting whether coldness resolves with warming and activity, or persists regardless, along with the pet's overall energy and appetite over the same period, adds useful context. Observation of this kind suits coolness in a pet that is otherwise bright, eating and moving normally. It does not fit a cat with a sudden cold, painful or unusable limb, a pet that is cold all over or has stopped shivering, or cold extremities with pale gums, weakness or laboured breathing. Those patterns can change over minutes to hours, and the findings that matter in them, such as limb pulses, core temperature and blood pressure, cannot be measured at home.
Last reviewed: 9 October 2026 · Dr Alastair Greenway MRCVS