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CMO-Craniomandibular Osteopathy

Description: Craniomandibular Osteopathy (CMO) is a bizarre and temporary overgrowth of bone that develops in the jawbone or head, beginning in puppyhood. Often the abnormal thickening of bone resolves on its own by 12 months old. 

What to Watch For: It can occur between 4 and 8 months old. Signs in your dog can include a swollen jaw, eating difficulties, pain, and trouble opening her mouth. Other signs are facial swelling, discomfort, muscle atrophy, drooling, and depression.  

Diagnosis: If your dog is still young, your veterinarian will exam her for this condition during her puppy visits. Radiographs, biopsies, and physical exams may be conducted to diagnose this condition.

Treatment: Pain medication, a soft food diet, and sometimes a feeding tube may be required to help her through this growth phase.

Breeds prone to CMO-Craniomandibular Osteopathy include:

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