Gastrointestinal Stasis and Ileus
Learn what the condition is, how it may be detected early, how it is treated or managed, and which breeds or species are linked to it.
Condition snapshot
A concise guide to the condition’s pattern, detection, management and urgency.
Obstruction must be consideredDo not force-feed an animal with a possible blockage. Loss of appetite or droppings needs same-day veterinary assessment.
This snapshot is a general guide, not a diagnosis or treatment plan. New, severe or worsening signs require veterinary assessment.
About the condition
Gastrointestinal stasis is reduced or arrested movement of the stomach and intestines. It is usually secondary to pain, dental disease, dehydration, low-fibre diet, stress, surgery, systemic illness or obstruction rather than a disease occurring without a cause.
The animal eats less or stops eating, produces fewer or smaller droppings, sits hunched, grinds the teeth, becomes bloated and may be quiet or cold. Gas and dehydration further reduce motility, creating a self-perpetuating emergency.
Gastrointestinal stasis in rabbits and guinea pigs is a reduction in normal motility and intake, most often driven by pain, dental disease, dehydration, stress, low fibre, medication or systemic illness. It must be distinguished from a mechanical obstruction, because both can present with anorexia, scant faeces and gas but require different decisions. As intake stops, gut contents dehydrate, the caecal microbial environment changes and painful gas further suppresses eating. Prolonged negative energy balance can produce hepatic lipidosis, especially in an overweight patient. Rabbits cannot vomit, so gastric distension may become severe without that warning sign. Small mammals conceal illness, and waiting for complete absence of droppings allows the cycle to progress. “Hairball” is often a consequence of reduced motility rather than the initiating cause. Stasis is therefore a syndrome requiring a search for dental, urinary, reproductive, orthopaedic and infectious pain instead of being treated as an isolated stomach problem.
Motility and appetite influence each other, so deterioration can accelerate after only a short period of reduced intake. Cecal fermentation continues to produce gas while dehydrated contents move poorly, adding pain and pressure. An animal may still nibble preferred treats while consuming too little fibre and energy overall. Posture, tooth grinding and hiding can be more informative than abdominal sounds, which vary and do not reliably grade severity. Repeated “stasis” episodes indicate an unresolved painful, dietary or systemic driver rather than a normal tendency of the individual.
Screening & Early Detection
Provide unlimited hay, stable social housing, daily exercise, gradual diet changes and rapid treatment of dental or painful disease. Monitor appetite and faecal output every day rather than waiting for visible weight loss.
Diagnosis uses examination, abdominal palpation, temperature, hydration assessment and radiographs or ultrasound to distinguish functional stasis from a physical obstruction. Blood glucose and other laboratory findings can help assess severity in rabbits. Treat reduced appetite and smaller droppings as measurable changes: record time of last normal meal, faecal quantity, water intake and medications. Examine temperature, hydration, mouth, abdomen and pain sources. Radiographs assess gastric size, gas pattern and obstructive material; serial views, ultrasound and blood glucose may refine severity in rabbits. Blood chemistry evaluates dehydration, liver or kidney disease. A sharply painful or rapidly enlarging stomach, very high glucose, collapse or progressive radiographic dilation increases concern for obstruction and changes feeding and motility-drug safety.
A rabbit or guinea pig that stops eating or passing droppings needs same-day veterinary assessment. Measure total food disappearance and faecal output rather than noting only that some eating occurred. Compare abdominal findings and radiographs over time when the distinction between functional slowdown and obstruction remains uncertain. A falling temperature, increasing glucose or declining responsiveness moves the case out of routine home monitoring.
Treatment & Management
Treatment commonly includes warmed fluids, strong pain relief, assisted feeding when obstruction is excluded, motility medication in appropriate cases and treatment of the initiating problem. Surgery is required for some obstructions, while routine surgery is not used for uncomplicated stasis.
Correct hypothermia and dehydration, provide effective analgesia and treat the initiating dental, urinary, surgical or other disorder. Assisted feeding is important in uncomplicated stasis but is withheld until a clinically significant obstruction has been excluded; force-feeding against a blocked stomach can worsen rupture risk. Use motility medication only after the same assessment. Encourage voluntary hay and leafy food once stable and provide quiet movement and familiar bonded companionship when safe. Decompress severe gas or operate on an obstruction when indicated. Monitor temperature, pain, body weight, intake and faecal volume rather than judging recovery from one stool. Discharge planning should specify feeding volume, drug timing and the point for urgent re-examination if appetite or droppings fail to improve.
Recovery continues until normal voluntary intake, hydration, faecal volume and activity persist without intensive support. Reintroduce movement and social contact in a way that does not interfere with monitoring. A written recurrence plan should identify the patient's earliest reliable sign and the known initiating disease.
Breeds or species affected
Mini Lop
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Dwarf Lop
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Netherland Dwarf
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Dutch Rabbit
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Mini Rex
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Standard Rex
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English Spot
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Flemish Giant
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New Zealand White
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English Angora
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American Guinea Pig
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Abyssinian Guinea Pig
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Peruvian Guinea Pig
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Sheltie or Silkie Guinea Pig
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Teddy Guinea Pig
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Skinny Pig
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