Tick Infestation in Dogs & Cats: Symptoms, Treatment & Prevention Guide [2025]
Ticks can transmit multiple diseases — regular use of preventive medication is the most effective way to protect your pet
When to See a Vet
Seek immediate veterinary care (emergency)
- •Sudden weakness of the hind limbs with inability to stand or walk
- •Onset of severe difficulty breathing or rapid breathing
- •Sudden collapse or persistent seizures with loss of consciousness
Schedule a veterinary visit soon (within 24–72 hours)
- •Persistent drowsiness with markedly reduced activity
- •Reduced appetite or noticeable weight loss over a short period
- •Persistent swelling at the bite site or local pain that does not improve
01What symptoms indicate something is wrong?
Tick infestations often cause neurological or systemic symptoms that can affect energy, appetite, and body temperature — ranging from mild to severe.
- Low energy, lethargy, or reduced activity
- Noticeable weakness, difficulty standing or walking steadily
- Progressive weight loss or decreased appetite
- Recurring or unexplained fever
- Pain or resistance to touch at the bite site
- If any of the above occur, schedule a veterinary consultation as soon as possible
Seek emergency care immediately if you notice the following symptoms:
- ⚠️ Sudden hind limb paralysis or complete inability to move
- ⚠️ Difficulty breathing or collapse and loss of consciousness
- ⚠️ Heavy or uncontrolled bleeding
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02How do you assess the situation at home? Key observations and when to seek emergency care
Tracking key changes at home helps your vet quickly assess the condition and monitor treatment response.
- Observe and log daily trends in energy level and activity
- Weigh your pet weekly and chart the changes over time
- If you can measure body temperature, record the reading and time
- Note daily appetite, water intake, and elimination (urine and stool)
- Record video or photos of symptoms or the bite area to aid the vet's assessment
03How will the vet make a diagnosis? Common diagnostic tests
At the clinic, your vet will use a physical exam and laboratory tests to evaluate the infection and organ involvement — advanced molecular or imaging studies may follow if needed.
Physical examination
assess the skin, bite site, neurological reflexes, and overall condition
Complete blood count (CBC)
evaluate for anemia, white blood cell changes, and signs of infection
Blood chemistry panel
assess liver and kidney function and electrolyte balance
Serology (antibody tests) and PCR (molecular testing) to identify the causative pathogen
Advanced imaging (CT/MRI) if needed to evaluate neurological involvement or secondary injury
04What treatment and care are needed after diagnosis? Medications, diet adjustments & home care guide
Treatment is adjusted based on test results; attending scheduled follow-up visits and repeat tests allows the vet to evaluate response and prognosis.
- Follow the vet's instructions for medications or supportive treatment, and attend all scheduled follow-up appointments
- Schedule follow-up blood or serology tests to confirm treatment response
- Provide appropriate nutrition and hydration to support your pet's recovery and stamina
- Remove ticks from the home environment and monitor the bite wound for any changes
- If recovery is slow or symptoms recur, consider seeking a referral to a specialist clinic
05What should you prepare before the vet visit? Key information to help your vet diagnose quickly
This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.