What should I do if a rat's belly is swollen?

What should I do if a rat's belly is swollen? - briefly

Immediately consult a veterinarian, because abdominal swelling may indicate infection, organ failure, or pregnancy. Keep the rat in a quiet, warm environment and limit handling until a professional assessment is completed.

What should I do if a rat's belly is swollen? - in detail

If a rat’s abdomen appears enlarged, act promptly. First, isolate the animal from other pets to prevent stress and possible spread of disease. Observe the mouse closely for additional signs: rapid breathing, lethargy, loss of appetite, vomiting, or discharge from the nose or eyes. Record the duration of swelling and any recent changes in diet, environment, or handling.

Next, perform a basic physical check. Gently palpate the belly to determine whether the swelling feels firm, fluid‑filled, or contains masses. Note any tenderness, heat, or abnormal movement. If the rat is pregnant, the swelling will be symmetrical and the skin may be stretched; however, pregnancy should be confirmed before assuming it is the cause.

After initial assessment, contact a qualified exotic‑animal veterinarian without delay. Provide the vet with the observed symptoms, the rat’s age, sex, weight, and any recent medical history. The veterinarian may recommend one or more of the following diagnostics:

  • Radiography to identify gas accumulation, organ enlargement, or tumors.
  • Ultrasound for detailed view of internal structures and fluid pockets.
  • Blood panel to detect infection, organ dysfunction, or metabolic disorders.
  • Fecal examination for parasites or bacterial overgrowth.

Based on diagnostic results, treatment may include:

  • Fluid therapy (subcutaneous or intravenous) to correct dehydration and support circulation.
  • Broad‑spectrum antibiotics if bacterial infection is suspected.
  • Antiparasitic medication for confirmed worm infestation.
  • Surgical intervention for obstructive masses, severe bloat, or tumors.
  • Pain management with appropriate analgesics.
  • Supportive care such as warm bedding, easy access to fresh water, and a high‑calorie diet if the rat is weak.

Do not attempt home remedies such as laxatives, herbal extracts, or forced feeding, as these can exacerbate the condition. Maintain a clean cage, provide a balanced diet rich in fiber, and ensure continuous access to clean water to reduce recurrence risk.

Monitor the rat after treatment for any changes in abdominal size, behavior, or appetite. Report any deterioration to the veterinarian immediately. Prompt professional intervention and careful supportive care are essential for a favorable outcome.