Why can’t a dog open and close its mouth normally?

A dog’s inability to open or close its mouth normally is usually caused by masticatory myositis, nerve palsy, or bone/joint problems.

Cause Investigation

1. Inability to open the mouth: Mostly caused by masticatory muscle atrophy, jaw diseases, or oral inflammation.
2. Inability to close the mouth: Caused by ingestion of irritating items, dislocation, etc.
3. Sudden symptoms: May stem from trauma or pain that prevents the dog from opening its mouth.
4. Progressive symptoms: May be related to developmental or congenital factors.

Solutions

1. Gently open the dog’s mouth to check for oral ulcers. If oral ulcers are diagnosed, subcutaneous injections of antibiotics and painkillers can be administered, combined with oral ointment. If the ulcers make it impossible for the dog to eat, intravenous fluid therapy is required.
2. Check if any foreign objects (e.g., bones) are stuck between the teeth, which may be propping the mouth open.
3. If no visible abnormalities are found, take the dog to the vet for a comprehensive examination and targeted treatment.

Prevention Measures

1. Perform regular oral care for your pet.
2. Minimize feeding hard foods such as bones.

Important Reminder

Inability to close the mouth can also be a symptom of rabies. If your pet shows symptoms similar to rabies, restrain it safely and take it to the vet for a definite diagnosis immediately.