Help! My Cat Has a Ruptured Anal Gland! (Vet Answered)
This question has been answered by a vet
Veterinarian & Animal Behaviorist
With nearly two decades in veterinary medicine, Dr. Paola brings hands-on experience across multiple species. A graduate of the University of Guadalajara, she specializes in preventive care, animal welfare, and positive reinforcement training.
The Question
“Dear Dr. Paola,
Yesterday, my cat Peach was seen at the vet and had a ruptured anal gland. How can this be prevented, what caused it, and what questions should I ask about the blood work results from the tests they ran? Thanks!” – Ruth
Quick Info about Peach
Hi Ruth,
I’m sorry Peach had to go through that. Ruptured anal glands can be quite painful, but with the right care, she’ll be feeling better soon. You can think of anal sacs like tiny balloons located just inside the anus, positioned at about 4 o’clock and 8 o’clock if you imagine a clock face. These small, sac-like structures sit beneath the skin and produce a thick, often strong-smelling fluid that cats use for scent marking. Normally, this fluid is naturally expressed during defecation when firm stool passes through, applying pressure to the glands. However, if the fluid becomes too thick, the ducts become blocked, or there is inflammation, the glands can overfill, leading to impaction, infection, and, in severe cases, rupture.
This rupture happens because pressure builds up like an overfilled water balloon. Once the fluid thickens or the ducts become blocked, bacteria will get involved, forming an infection that develops into an abscess that bursts. Some cats are more prone to this due to stool consistency, anatomy, or underlying health issues.
Preventing this means keeping those “balloons” from overfilling in the first place. A diet that promotes firm, well-formed stools helps naturally express the glands, much like squeezing a ketchup packet just enough to release a little at a time instead of all at once. If Peach has soft stools or frequent anal sac issues, adjusting her fiber intake with the addition of natural sources like canned pumpkin or psyllium husk, or even a veterinary recommended supplement might help.
Maintaining a healthy weight is also important since excess fat can interfere with normal gland hygiene and function. Chunky cats simply cannot reach to keep the area clean by themselves, while the excess weight can reduce circulation in the area, and their slower digestion due to sedentarism does not help either. For some cats, periodic veterinary checks to manually express the glands may be necessary, but only if this is recommended by the vet. Manually expressing the glands when it is not necessary can further contribute to the loss of tone and result in improper emptying.
For her bloodwork, you might ask about her white blood cell count, which can indicate infection or inflammation, and whether any liver or kidney values were assessed, especially if she’s on antibiotics or pain medication. It is also important to determine if allergies or food sensitivities might be contributing; discussing dietary changes could be useful. Keep an eye on stool consistency, diet, and any signs of discomfort (like scooting, excessive licking, or swelling near the anus) to help prevent future problems. I hope Peach heals quickly!
Dr. Paola