Itching in Rottweilers can have several causes, including allergies to food, environmental allergens, flea bites, skin infections, parasites such as fleas, ticks, or mites, hormonal imbalances like hypothyroidism, or dry skin. If your Rottweiler is persistently itchy, it is important to have them evaluated by a veterinarian to determine the underlying cause. A proper diagnosis is essential for effective treatment, which may include dietary changes, medication, or other interventions.