What should you do if a rat opens its mouth? - briefly
Do not try to touch the animal; maintain a safe distance and monitor its behavior. Contact a professional pest‑control service or a veterinarian for proper assessment and removal.
What should you do if a rat opens its mouth? - in detail
If a rodent displays an open‑mouth posture, first determine whether the behavior signals aggression, distress, or a physiological need such as grooming. Observe eye contact, ear position, and body tension; a stiff stance and direct stare usually indicate a defensive posture, while a relaxed posture may accompany normal activities like chewing.
Protect personal safety by creating a physical barrier. Wear thick gloves, use a cloth or a trap door, and keep your face and hands away from the animal’s head. If the creature appears ready to bite, step back, close the distance with a sturdy object, and do not attempt to grasp it directly.
For captive animals, an open mouth can reveal dental problems, respiratory infection, or heat stress. Conduct a quick visual inspection of the teeth for overgrowth, check for nasal discharge, and assess ambient temperature. Provide fresh water, appropriate bedding, and a quiet environment to reduce stress.
When signs of illness or injury are present, contact a veterinarian experienced with small mammals. Prompt professional evaluation prevents complications such as abscesses or zoonotic infections.
If the rodent is wild, eliminate attractants that might encourage close contact. Secure food sources, seal entry points, and, if necessary, set humane traps to remove the animal from the premises. Follow local regulations for disposal or release.
After any interaction, wash hands thoroughly with soap and water, disinfect surfaces with a bleach solution (1 : 10 ratio), and monitor for symptoms like fever, rash, or respiratory issues that could indicate disease transmission. Seek medical advice if any health concerns arise.