Yes, many ants can bite with their jaws, usually causing only a mild pinch.
Do ants bite
Yes. Many ants bite with their mandibles. Others sting or spray formic acid.
Fire ants
They bite to grip, then sting with venom. This makes painful pustules.
Carpenter ants
Bite and spray formic acid. Their bites hurt.
Treatment
Wash, apply a cold pack and use hydrocortisone cream.
See a doctor
If you have swelling of face, trouble breathing or signs of infection.
Control
Seal entry points.
Which ants bite
Ants do bite with their mandibles, and some also sting or spray formic acid. Common household ants such as odorous house ants and pavement ants rarely bite people, and their bites are mild. Larger ants like carpenter ants can bite and cause a pinch and a small red mark.
- Fire ants (Solenopsis invicta) both bite and sting, injecting venom that causes burning pustules, a sting that lasts about 1 to 2 hours, and pustules for several days.
- Fire ants are in the southern US, with an estimated 14 million people stung each year.
- Bullet ants and other tropical ants have extremely painful stings, and the Schmidt pain index rates them as the highest.
Treatment and control
Wash with soap and water, apply a cold compress and hydrocortisone or antihistamine for itching. Do not pop pustules. Seek emergency care for signs of anaphylaxis: swelling of the face, trouble breathing, hives or dizziness, which affects a small share of people stung. Control ants with baits, sealing entry points, cleaning food residue and treating mounds.
Which ants bite
Most ants can bite with mandibles, and some also sting or spray formic acid. Fire ants sting repeatedly, carpenter ants bite and spray acid, and bullet ants have an extremely painful sting. Common household ants like odorous house ants rarely bite.
Treatment and control
Wash the area, apply cold packs and hydrocortisone. Seek emergency care for allergic reaction. Control ants by sealing entry points and using baits.
Which ants bite
Most ants can bite, using their jaws (mandibles) to grab skin, but many ordinary ants like pavement ants and carpenter ants have weak bites that are barely noticeable. Carpenter ants can pinch and may spray formic acid. Fire ants bite to hold on and then sting with the abdomen, injecting venom, producing a burning pustule.
Treatment
Wash the area, apply a cold pack, and use hydrocortisone cream or an antihistamine for itching. Seek medical help for signs of anaphylaxis, such as swelling of the face, trouble breathing, dizziness or widespread hives. Fire ants have spread across the southern US and cost billions of dollars in damage and treatment. Prevent ants indoors by sealing food, wiping crumbs and sealing entry points. Baits are better than sprays for colonies.
Based on data from university entomology extension services and the Mayo Clinic
