Ticks on dogs and cats: removal, Lyme disease and prevention

A tick is a small arachnid that attaches to a dog and feeds on blood. The bite can irritate the skin, while some ticks can also carry infections between animal hosts.

Ticks are related to mites and spiders rather than insects. Their body becomes easier to see as they feed, but young or unfed ticks may be tiny and hidden by the coat. [1]

Dogs can encounter ticks in woodland, grassland, moorland, scrub, parks and gardens, especially where wildlife or livestock pass through. Brushing against low vegetation gives a waiting tick a chance to climb onto the coat.

Risk varies sharply with the local habitat and the dog's routine. Rural walks are a familiar setting, but an urban address does not rule exposure out because wildlife-accessible green spaces can also support ticks. [1]

Yes. UK ticks can be active at any time of year, although their activity rises and falls with season, life stage and weather. A cold month therefore does not make exposure impossible.

Activity often becomes more noticeable in spring and again later in the year, but local conditions matter. A practical risk assessment is more useful than treating one fixed set of months as universally tick-free. [1]

An attached tick can look or feel like a small, firm bump fixed to the skin, with legs gathered near its head. Its body usually becomes rounder and more obvious as it fills with blood.

Small larvae, nymphs and unfed adults are much easier to miss than a swollen female. A lump that cannot be confidently identified is worth showing to a veterinary practice rather than squeezing or cutting it. [2]

Ticks can attach anywhere, but thinner-skinned or less hairy areas deserve particular attention. Common hiding places include the face, ears, armpits, between the toes, groin and around the bottom.

A check works best when sight and fingertips are used through the coat because a small tick may be felt before it is seen. More than one tick can be present after the same outing. [2]

Prompt removal reduces the time an attached tick has to feed and potentially pass an infection. It also ends the continuing irritation caused by the bite.

Transmission timing differs between pathogens, so there is no single safe waiting period for every tick-borne infection. Careful early removal is useful even when the dog looks well and the tick species is unknown. [2]

Safe removal uses a purpose-designed tick tool close to the skin, with gentle control that avoids crushing or squeezing the tick. The aim is to release it intact without traumatising the bite site.

Different tools have slightly different motions, so their instructions matter. A veterinary practice can help when the tick is in a delicate place, the dog will not stay still or the object may not be a tick. [3]

No. Oil, alcohol and ether are not recommended ways to detach a tick. They do not provide the controlled removal achieved with a suitable tick tool and can delay getting the tick off cleanly.

Burning, crushing or coating an attached tick also makes the process less predictable. If suitable equipment is unavailable or the attachment site is awkward, a veterinary practice can remove it safely. [2]

Retained tick mouthparts can leave a small dark speck and may trigger redness, swelling, infection or a tiny abscess. They are a local skin problem; the remaining fragment is not a whole tick continuing to feed.

A veterinary check is sensible when material remains, the site is painful or inflamed, or its identity is uncertain. Digging at the skin can add trauma and make a small reaction harder to assess. [3]

A local infection may make the bite site increasingly red, warm, swollen, sore or moist with discharge. A small bump immediately after removal is not automatically an infection, but worsening change deserves veterinary advice.

Skin infection is different from a tick-borne illness elsewhere in the body. A dog that also becomes lethargic, feverish, off food, lame, pale or generally unwell needs assessment beyond the bite itself. [3]

Yes. Signs of a tick-borne infection may appear while a tick is attached or only after it has detached or been removed. Not seeing a tick later does not erase a recent exposure.

Fever, tiredness, poor appetite, lameness, pale or yellow gums, unusual bleeding, vomiting or dark urine can have many causes. Mentioning recent walks, travel and known tick bites helps a vet choose appropriate differentials and tests. [2]

Collapse, severe weakness, breathing difficulty, very pale or yellow gums, uncontrolled bleeding, red or very dark urine, repeated vomiting or rapidly worsening illness need emergency veterinary assessment immediately.

These signs are not specific to ticks, but some tick-borne diseases can damage red blood cells or platelets and progress quickly. The absence of a visible tick does not make a seriously unwell dog safe to watch at home. [4]

Yes. Lyme disease is caused by Borrelia bacteria carried by Ixodes ticks, including the widespread sheep tick in the UK. Exposure does not mean a dog will necessarily become ill.

Most infected dogs remain well, and naturally acquired disease can be difficult to define. A compatible illness is assessed alongside tick exposure, examination and testing rather than inferred from a bite alone. [5]

When Lyme disease causes signs in a dog, fever, tiredness, reduced appetite, muscle pain and lameness affecting one or more joints are the better-described pattern. Many exposed dogs never show this illness.

Those signs overlap with injuries, immune-mediated disease and other infections. A tick history can raise suspicion, but it cannot identify Lyme disease without the wider clinical picture and suitable laboratory evidence. [4]

Not by itself. A positive antibody result shows exposure to Borrelia, but it does not prove that the dog's current signs are caused by Lyme disease.

Vets interpret the result with symptoms, tick history, examination, urine and blood findings, and exclusion of other causes. Testing an otherwise healthy dog can therefore produce information that needs careful clinical context rather than an automatic disease label. [4]

Anaplasmosis is a bacterial tick-borne infection that is uncommon as a clinical disease in UK dogs. When illness occurs, it can begin suddenly with fever, lethargy, poor appetite, lameness or bleeding signs.

Low platelet counts and anaemia may support concern, but the outward signs are not distinctive. Diagnosis combines exposure history and clinical findings with blood tests, serology or molecular testing, whose timing affects interpretation. [5]

Babesiosis is a tick-borne infection in which Babesia parasites invade red blood cells. It can cause fever, profound tiredness, poor appetite, anaemia, yellow gums, vomiting and red or dark urine.

Severity varies with the Babesia type and the dog's health, but acute disease can become life-threatening. A dog with marked weakness, pale or yellow gums, collapse or discoloured urine needs emergency veterinary assessment immediately. [4]

Travel and import history change which tick species and infections a vet must consider. A disease uncommon near a dog's UK home may be established in the country it visited or previously lived in.

The itinerary, dates, preventive cover and any ticks seen can all help interpretation. Some imported ticks can also survive indoors, so travel history matters even after the dog is back in Britain. [6]

A dog's tick plan is best matched to its location, walking habitat, travel, health and how often exposure occurs. Coat checks, prompt removal and an appropriately authorised veterinary product may all contribute.

Products differ in species coverage, speed, duration and suitability for an individual dog. A veterinary practice can help match protection to real risk and current product information instead of assuming one schedule fits every dog. [6]

No. A dog does not directly pass Lyme disease to a person. People and dogs become exposed through infected ticks rather than by catching Borrelia from one another.

A dog can still carry an unattached tick into a home, where it may seek another host. Removed ticks therefore need secure disposal, and checking people as well as pets after shared outdoor activity is a sensible One Health habit. [4]

Yes. Outdoor cats can pick up ticks in the UK when they pass through vegetation used by wildlife or livestock. The tick attaches to the skin and feeds on blood.

Cats appear less affected by recognised tick-borne diseases than dogs, but attachment can still irritate the skin and occasionally expose them to infection. Finding a tick is therefore worth taking seriously without assuming illness is inevitable. [2]

Cats can encounter ticks in woodland, grass, moorland, scrub, parks and wildlife-accessible gardens. Hunting or roaming through low vegetation increases opportunities for a tick to transfer onto the coat.

Risk depends on the local habitat rather than a simple rural-versus-urban label. An indoor-only cat has much less direct exposure, while an outdoor cat's territory may cross several tick-friendly environments. [6]

Ticks may attach anywhere on a cat but are often found around thin-skinned or less hairy areas, including the face, ears, armpits, between the toes, groin and around the bottom.

Small ticks are easy to overlook in dense fur, while a feeding tick may feel like a firm bump. A gentle fingertip check can reveal one that is not obvious on visual inspection. [2]

Safe removal uses a suitable tick tool close to the skin, controlling the tick gently so it is not crushed or squeezed. The aim is to release it intact with as little skin trauma as possible.

A cat that struggles can make delicate removal unsafe for both cat and carer. A veterinary practice can help when the tick is near an eye or mouth, the cat cannot be held calmly, or the lump is uncertain. [3]

Retained mouthparts may leave a dark speck and provoke a small inflamed lump, infection or abscess at the bite site. The fragment cannot continue feeding like an intact tick.

Veterinary advice is appropriate when material remains, the area becomes increasingly sore, red, hot, swollen or wet, or the cat keeps disturbing it. Digging at the site can add avoidable skin damage. [2]

Yes. Signs linked to a transmitted infection can appear after the tick has detached or been removed. A recent tick may therefore remain relevant even when nothing is visible in the coat.

Loss of appetite, lethargy, fever, weakness, pale gums, unusual bleeding or diarrhoea are not specific to tick disease. Telling the vet about outdoor access, travel and known bites helps place those signs in context. [2]

Collapse, severe weakness, breathing difficulty, very pale or yellow gums, uncontrolled bleeding, repeated vomiting or rapid deterioration need emergency veterinary assessment immediately.

These signs have many possible causes and recognised tick-borne disease is uncommon in UK cats, but rarity does not make a seriously unwell cat safe to observe without care. The tick history is useful information, not a diagnosis. [4]

Cats can be exposed to Borrelia bacteria and develop antibodies, but naturally occurring Lyme disease is rarely documented in cats. Their clinical disease remains much less clearly understood than it is in people or dogs.

A positive antibody result shows exposure and does not automatically explain a cat's illness. Lameness, fever or lethargy still require a broader veterinary assessment because many more common conditions can cause the same signs. [4]

Yes, but reported Anaplasma infection in cats is rare. Affected cats have been described with lethargy, poor appetite, fever, enlarged lymph nodes, anaemia and low platelet counts.

Those findings overlap with many other feline illnesses. Diagnosis draws on tick and travel history, examination, blood-cell changes, antibody testing and molecular testing, and a negative result at one point may not settle every case. [4]

Feline babesiosis has been reported, but it is only occasionally observed in Europe and the responsible species and vectors remain uncertain there. Reported signs include lethargy, poor appetite, weakness and diarrhoea.

Fever or yellow tissues may be absent, and signs may become obvious only later. Travel or origin outside the UK, immune suppression and other infections can materially change how a veterinary team interprets the possibility. [4]

A cat's plan should reflect outdoor access, local tick habitat, hunting, travel, health and whether ticks have been found before. Coat checks and a cat-authorised veterinary product may both have a role.

Cats groom themselves and differ greatly from dogs in medicine safety. A veterinary practice can match protection to the individual cat and current product information while avoiding unnecessary exposure and dangerous dog-only ingredients. [6]

Some dog-only flea and tick products contain concentrated permethrin that is highly poisonous to cats. Even a small exposure from an incorrectly applied product or grooming a recently treated dog can cause severe illness.

A product must be specifically authorised for cats rather than chosen by pack size or shared between pets. Suspected permethrin exposure is an emergency and needs immediate veterinary advice, with the packaging available to identify the product. [7]

Travel, importation and a cat's country of origin change which ticks and tick-borne infections are plausible. Conditions rarely recognised in UK cats may be more relevant after time in another part of Europe or farther abroad.

Dates, destinations, outdoor access and preventive history help a vet narrow the possibilities. This context remains useful long after arrival because infection signs may be delayed and an imported cat's earlier exposures may not be visible. [4]

A cat does not directly pass Lyme disease or anaplasmosis to a person; the tick vector is needed. The practical household risk is an unattached tick carried indoors on fur and later attaching to another host.

Secure disposal after removal prevents a live tick from moving to a person or another animal. Shared outdoor exposure also makes human tick checks relevant, even when the cat itself remains completely well. [4]