Blue Breasts in Rabbits

Upon infection, usually resulting from trauma or injury to the teat caused by nursing, nicks from inappropriate and rough caging and bedding and an unhygienic environment, the mammary glands will become inflamed and reddened and will radiate an atypical heat. The common name for the bacterial infection of the lactating glands, Blue Breasts, originates from the bluish color that characterizes the infected mammary region. 

The infection of the lactating glands typically occurs in the second week after giving birth. The disease is always preceded by lactostasis phenomenon, otherwise known as milk stagnation. The swelling and weight that accompanies the presence of milk in the glands, along with the enervation of the doe’s body following pregnancy and birth, creates a favorable environment for the development of a bacterial infection.

If left untreated, bacteria may quickly spread through your rabbit's body and lymph glands, leaving the animal vulnerable to septicemia, a potentially life-threatening condition that arises from the body’s response to infection. If caught at an early stage, the infection will likely resolve in an outpatient setting with the use of antibiotics. Damage may also be limited to one or two mammary glands. However, a recurring or severe infection may call for the removal of the mammary glands, the ovaries and uterus. No matter the treatment, maintaining a clean, hygienic environment is vital to the health of your pet.

Reproductive disorders of rabbits include bacterial infections and metabolic disorders. Mastitis (inflammation of the breasts or Blue Breasts) in rabbits is a bacterial infection of the mammary glands, the glands that produce milk after the rabbit (doe) has given birth. Restricted to female rabbits, mastitis typically occurs when the primary causative bacteria Streptococcus aureus and Streptococcus pastuerella gain access to the breast through the duct that carries milk to the young.