What happens after a black widow bite?
Female black widows are shiny black with a red hourglass underneath. The bite may feel like a pinprick, followed by muscle pain and cramping that can spread.

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Check my biteWhat it looks like
- Two tiny fang marks and mild redness
- Muscle cramps in belly, back, or chest within an hour
What to do
- Wash, apply cold, and stay calm
- Call Poison Control at 1-800-222-1222
See a doctor if you notice
- Spreading muscle pain or cramping
- Sweating, nausea, or high blood pressure
- Any bite in a child or older adult
Trouble breathing, face or throat swelling: call 911 now.
Other bite guides
Educational information only, not a diagnosis. BiteID is in alpha testing.