Multiple bee stings in dogs: delayed complications
8 kg terrier that knocked over a beehive and arrives with more than 40 stings on the head and trunk. It is agitated with facial oedema, but has normal blood pressure and no signs of anaphylaxis one hour later.
What is the most appropriate approach?
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A. Give an antihistamine and discharge, as the absence of anaphylaxis in the first hour rules out complications
Anaphylaxis is only one of the risks. With many stings the problem is direct venom toxicity, whose systemic effects appear hours or days later.
B. Immunosuppressive corticosteroids to prevent haemolysis
Venom-induced haemolysis is direct (melittin and phospholipase A2 damage the red cell membrane), not immune-mediated; there is no evidence that corticosteroids prevent it.
C. Preventive blood transfusion before the haematocrit falls
Transfusion is indicated according to the anaemia and clinical signs, not preventively. What is needed is monitoring to detect it in time.
D. Hospitalise for 24–72 h with fluid therapy and monitor haematocrit, urine colour, creatinine, CK, platelets and coagulation
Correct. Massive envenomation can cause haemolysis, rhabdomyolysis, pigment-induced acute kidney injury, thrombocytopenia and DIC with a delayed onset. Fluids help protect the kidney against haemoglobin and myoglobin.
lightbulb Key takeaway
Distinguish two pictures: anaphylaxis (can follow a single sting, within minutes) and toxicity from massive envenomation (depends on the number of stings per kilo, appears over hours or days). In small dogs with many stings, hospitalise even if they are stable. Remove the stingers as soon as possible: speed matters more than technique.
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Updated: October 31, 2026 · Educational content for veterinary professionals. It does not replace current clinical guidelines or the judgement of the attending veterinarian.