Why are a cat's breasts swollen? - briefly
A cat's breasts may become swollen due to pregnancy, lactation, or a condition such as mastitis or a hormonal imbalance.
Why are a cat's breasts swollen? - in detail
Swelling in a cat’s mammary glands, often referred to as breast swelling, can occur due to several physiological and pathological reasons. One of the most common causes is pregnancy. During gestation, a cat’s body undergoes hormonal changes that prepare the mammary glands for lactation. This results in increased blood flow and tissue growth, leading to noticeable swelling. After giving birth, the mammary glands continue to enlarge as they produce milk for the kittens. This is a natural and expected process in nursing cats.
Another potential cause is pseudopregnancy, a condition where a non-pregnant cat exhibits signs of pregnancy due to hormonal imbalances. This can include mammary gland swelling, milk production, and behavioral changes. Pseudopregnancy typically resolves on its own within a few weeks as hormone levels normalize.
However, mammary gland swelling can also indicate health issues, such as mastitis, an infection of the mammary tissue. Mastitis often occurs in nursing cats when bacteria enter the mammary glands through cracked or damaged nipples. Symptoms include redness, warmth, pain, and sometimes discharge from the affected area. Left untreated, mastitis can lead to systemic infection and other complications.
Another concerning cause is mammary gland tumors, which can be benign or malignant. Malignant tumors, in particular, are aggressive and can spread to other parts of the body. Swelling associated with tumors may be accompanied by lumps, skin changes, or ulceration. Early detection and veterinary intervention are crucial for managing this condition.
Lastly, hormonal imbalances unrelated to pregnancy or pseudopregnancy can also cause mammary gland swelling. Conditions such as hyperadrenocorticism or the use of certain medications may disrupt normal hormonal regulation, leading to glandular changes.
In any case, persistent or unusual swelling in a cat’s mammary glands warrants a veterinary examination. A thorough assessment, including physical examination, imaging, and possibly biopsy, can help determine the underlying cause and guide appropriate treatment. Prompt attention ensures the best possible outcome for the cat’s health.