What are the common treatment options for intussusception?

If intussusception cannot resolve on its own, surgical reduction or resection of the affected intestinal segment is typically required. Post-operative hospitalization and supportive care are usually needed; the specific approach depends on your vet's assessment.

What tests does the vet use to diagnose intussusception?

Common tests include a physical examination, abdominal X-rays, and ultrasound. A CT scan or endoscopy may be added if needed to confirm the extent of the lesion and assess blood flow.

What are the key points for post-operative recovery and home care?

After surgery, activity should be restricted and scheduled follow-up visits with imaging checks are essential. Pain relief and antibiotics are given as directed by your vet, and food is reintroduced gradually to protect intestinal healing.

What should I know about the cost of intussusception surgery?

Costs depend on the severity of the case and the clinic. Surgery and hospitalization fees can be substantial — ask your vet for a detailed estimate before proceeding.

How much do the tests and treatment usually cost?

Costs vary by clinic and region — ask your vet for an estimate before proceeding.

Disease Guide

Intussusception in Dogs & Cats: Symptoms, Diagnosis & Surgical Care [2025]

Intussusception is an emergency condition where one segment of the intestine telescopes into another, and is most common in young animals. It causes vomiting, bloody stools, and abdominal pain. Emergency surgery is usually required to reduce or resect the affected segment — delays can lead to intestinal necrosis.

Take 1 minute to check the symptoms first

Last updated: 2026/01/05

Pethealthmap editorial team

Sources: WSAVA, AVMA, National Taiwan University Veterinary Hospital

When to See a Vet

Immediate veterinary care needed (emergency)

•The abdomen is visibly swollen and clearly painful when touched
•Persistent vomiting with inability to keep any food down
•Blood in the stool or passage of black, tarry stool

Schedule a clinic visit as soon as possible (within 24-72 hours)

•Intermittent vomiting, but still able to drink water and urinate
•Markedly decreased appetite, but energy level and activity are still acceptable
•Change in bowel movement frequency or constipation lasting more than one day

01What symptoms indicate something is wrong?

Intussusception commonly causes gastrointestinal symptoms and systemic distress; clinical signs may appear suddenly or recur.

Noticeably decreased appetite or complete refusal to eat
Frequent or persistent vomiting that won't stop
Diarrhea, changes in stool consistency, or altered bowel habits
Rapid weight loss over a short period
Possible fever or elevated heart rate
Lethargy and markedly reduced activity level
Prompt scheduling of a clinic visit or imaging examination is recommended

Seek emergency care immediately if you notice the following symptoms:

⚠️ Obvious abdominal distension or a strong pain reaction when the abdomen is touched
⚠️ Continuous vomiting with inability to keep any food down
⚠️ Black or bloody stools, or signs of severe dehydration

02How can I monitor at home? Key observations and criteria for seeking emergency care

Recording key observations at home helps your vet quickly track how the condition has progressed.

Record changes in appetite and the actual amount eaten
Note the time and frequency of each vomiting episode
Check whether the stool is bloody or tarry (black)
Weigh your pet weekly or daily and track any changes
Measure and record body temperature if your pet will allow it
Monitor alertness, activity level, and water intake or urination patterns
Bring your notes along with any stool or vomit samples to the appointment

03How will the vet make a diagnosis? Common diagnostic tests

The vet will rely primarily on physical examination and imaging; blood tests or endoscopy may be added as needed to confirm the cause and extent of disease.

Physical examination

abdominal palpation to assess pain or masses

Blood and urine tests to evaluate overall health and hydration status

Abdominal X-rays as an initial assessment of the intestines and gas patterns

Abdominal ultrasound to identify the classic telescoping image and assess blood flow

CT scan when needed to evaluate the extent of complex lesions

Endoscopy to visualize the intestinal lumen and assist with diagnosis in specific cases

It is advisable to choose a specialist hospital equipped for imaging and surgical management

04How is intussusception treated and managed? Medications, diet adjustments, and care guide

Intussusception treatment often requires surgical intervention; post-operative care and follow-up greatly affect the prognosis, making home nursing and scheduled check-ups essential.

Mild or transient cases may be managed initially with fasting and supportive care
Most intussusceptions require surgical reduction or resection of the necrotic intestinal segment
Post-operative hospitalization for observation, fluid therapy, and pain management is usually necessary
Attend scheduled follow-up visits and imaging as directed by your vet
Post-operative diet should be reintroduced gradually to protect intestinal recovery
Home care includes wound care, activity restriction, and giving medications as prescribed
Return to the clinic immediately or contact the hospital if any unusual changes occur

05What should I prepare before the vet visit? Key information to help your vet assess quickly

Write down when symptoms first appeared and how they have progressed

Record your pet's food intake and eating behavior over the past 24 hours

Note the number, timing, and appearance of vomiting and bowel movements

List any recent medications or supplements your pet has been given

If possible, bring a small stool or vomit sample for the vet to examine

Book in advance at a clinic equipped for abdominal ultrasound and surgical management

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.

Related Symptoms (You May Also Be Looking For)

Vomiting blood

Fresh blood in stool

Loss of appetite

Loose stool

Stomach/belly pain

Dark tarry stool