Bee Sting Severity Calculator

Score bee sting features and allergy warning signs to decide how urgently care may be needed.

Assess bee sting severity

Enter sting count, swelling, location, allergy history, and systemic warning signs. Use 1 for yes and 0 for no.

Number of stings

Swelling diameter (cm)

Face, mouth, throat, or neck sting (0 or 1)

Whole-body symptoms (0 or 1)

Breathing or throat symptoms (0 or 1)

Known severe sting allergy (0 or 1)

About bee sting severity

Most bee stings cause a painful local reaction with redness, swelling, warmth, and itching around the sting site. Symptoms often peak over several hours and improve over one to three days. A larger local reaction can be uncomfortable and may involve swelling across a joint or limb segment, but it is still different from anaphylaxis. The key safety question is whether symptoms are limited to the sting area or involve breathing, circulation, the throat, the skin over distant areas, or the digestive system. This calculator creates a deterministic screening score from common risk features. It adds points for multiple stings, large swelling, a sting on the face, mouth, throat, or neck, whole-body symptoms such as widespread hives, vomiting, dizziness, or faintness, breathing or throat symptoms, and a known history of severe sting allergy. Breathing or throat symptoms automatically place the result in the emergency category because airway involvement can progress quickly. Otherwise, higher scores move from mild to moderate, urgent, and emergency risk bands. The tool is not a medical diagnosis. It cannot see the patient, measure vital signs, identify infection, or predict whether a reaction will worsen. People with wheezing, throat tightness, tongue or lip swelling, repeated vomiting, confusion, fainting, chest tightness, rapidly spreading hives, or use of an epinephrine auto-injector should seek emergency help immediately. Anyone stung many times, very young children, older adults, pregnant patients, and people with heart or lung disease may need a lower threshold for professional care. Basic first aid includes moving away from the insects, removing a visible stinger by scraping rather than squeezing, washing the area, applying a cold pack, elevating the limb if possible, and avoiding scratching. Antihistamines or pain relievers may be appropriate for some people, but medication choices depend on age, pregnancy, health conditions, and other medicines. If a person has a prescribed epinephrine auto-injector and symptoms suggest anaphylaxis, follow their emergency plan. Use the score to organize observations and communicate clearly with a clinician or dispatcher. Recheck symptoms over time because a mild-looking sting can become more concerning if swelling spreads rapidly, new whole-body symptoms appear, or breathing changes.

Bee sting severity examples

Sting features	Score and category	Suggested response
One arm sting, 4 cm swelling, no systemic symptoms	Score 0, mild reaction	Local home care may be enough if symptoms remain stable.
Three leg stings with 12 cm swelling	Score 2, moderate local reaction	Larger swelling and multiple stings justify closer observation.
One neck sting with hives and breathing symptoms	Score 12, emergency risk	Airway or breathing symptoms require emergency help.

How to assess a bee sting

Count the stings and estimate the widest swelling diameter in centimeters.
Enter 1 for sensitive location, whole-body symptoms, breathing or throat symptoms, and known severe allergy when present.
Select Calculate sting severity to see the score and risk band.
Use emergency services immediately for breathing trouble, throat symptoms, fainting, or rapidly spreading symptoms.

Bee sting FAQ

When is a bee sting an emergency?

Breathing difficulty, throat tightness, tongue or lip swelling, fainting, confusion, or rapidly spreading hives can signal anaphylaxis. These symptoms should be treated as an emergency even if there was only one sting.

Does large swelling always mean allergy?

Large local swelling can happen without a dangerous systemic allergy. However, swelling near the mouth, throat, neck, or eyes deserves more caution because anatomy can affect breathing or vision.

Should I remove the stinger?

Yes, remove a visible honeybee stinger promptly by scraping it away if possible. Avoid squeezing the venom sac because that may push more venom into the skin.

Can symptoms appear later?

Local swelling often increases for several hours after the sting. New whole-body symptoms, breathing changes, faintness, or repeated vomiting later on should prompt urgent assessment.

What if the person has an epinephrine auto-injector?

Follow the prescribed emergency action plan for symptoms of anaphylaxis. Epinephrine use should be followed by emergency medical evaluation because symptoms can return.