Agalactia, often referred to as agalactosis, is a medical condition that refers to the inability of lactating mammals to produce milk. The term agalactia is often used in veterinary medicine to describe cows that do not produce milk. Other synonyms for agalactosis include lactation failure, milk defect, and hypogalactia. A lack of milk production can occur for various reasons, such as hormonal imbalances, stress, and inadequate nutrition. Treatment options for agalactosis depend on the underlying cause and may include dietary changes, hormone therapy, or alternative methods of feeding newborns. Regular veterinary care is essential to monitor and address changes in milk production and ensure the health of the animal.