Do Brussels Griffons have breathing problems?

Yes, some Brussels Griffons have breathing problems due to their brachycephalic (flat-faced) features, which can contribute to a range of respiratory issues known as brachycephalic airway syndrome and include stenotic nares (narrowed or pinched nostrils), elongated soft palate (which can obstruct the airway), everted laryngeal saccules (small pouches in the larynx that can become everted or turned inside out), and tracheal collapse (weakness or collapse of the tracheal rings). 

If you suspect that your Brussels Griffon is experiencing breathing difficulties, seek veterinary care immediately. Breathing problems in Brussels Griffons can be managed by maintaining a healthy weight, avoiding strenuous exercise in extreme temperatures, and providing a cool and well-ventilated environment. In severe cases, surgical procedures might be necessary to correct anatomical abnormalities and improve airflow.