Cherry eye appears as a smooth, round, pink or red mass poking out from the inner corner of a dog’s eye, closest to the nose. It gets its nickname because the swollen gland looks strikingly like a small cherry wedged against the eye. The mass can range from pea-sized to large enough to partially block the eye’s surface, and it may show up in one eye or both.
What You’ll Actually See
The hallmark sign is hard to miss: a fleshy, reddish-pink bulge sitting in the lower inside corner of the eye. The surface of the mass is typically smooth and glistening, not rough or crusty. In mild or early cases, the bulge may be small and only visible when your dog looks in a certain direction or when you gently pull down the lower eyelid. In more advanced cases, it can swell to cover a noticeable portion of the eye.
The color ranges from bubblegum pink to deep red, depending on how inflamed the tissue is and how long it has been exposed. A freshly prolapsed gland tends to look pinker and smoother, while one that has been out for days or weeks often turns darker red and may appear more swollen from irritation and drying.
You may also notice watery or mucus-like discharge around the affected eye, along with general redness of the surrounding tissue. Some dogs paw at the eye or rub their face against furniture because the exposed gland feels irritating.
What Cherry Eye Actually Is
Dogs have a third eyelid, a thin membrane tucked in the inner corner of each eye that you rarely see under normal circumstances. Attached to that membrane is a small tear-producing gland responsible for roughly 30 to 50 percent of the eye’s total tear output. Cherry eye happens when that gland slips out of its normal position and pops forward, becoming visible as that characteristic red lump.
The gland is normally held in place by a band of connective tissue anchoring it to the surrounding structures and cartilage. In dogs that develop cherry eye, this anchoring tissue is weak or poorly formed, allowing the gland to slide free. The weakness appears to be present from birth in most cases, which is why cherry eye overwhelmingly affects puppies and young dogs, usually under two years old.
Breeds Most at Risk
Cherry eye is far more common in certain breeds, particularly those with flat faces and prominent eyes. Bulldogs (both English and French), Cocker Spaniels, Beagles, Bloodhounds, Lhasa Apsos, Shih Tzus, and Boston Terriers are among the most frequently affected. Mastiffs, Neapolitan Mastiffs, and Cane Corsos also appear on the list. The condition can occur in cats too, especially brachycephalic breeds like Persians and Burmese, where a similar loosening of the gland’s attachment has been observed.
If your dog is one of these breeds and you notice something unusual in the corner of their eye, cherry eye is a strong possibility. It can appear seemingly overnight, with no warning signs the day before.
Can It Come and Go?
In some dogs, cherry eye intermittently pops in and out early on. You might see the red mass appear one morning and find it gone by afternoon, only for it to return a day or two later. This “now you see it, now you don’t” phase can make owners wonder if the problem resolved on its own. It rarely does. Once the gland has prolapsed even once, the supporting tissue has already stretched, and recurrence is the norm. Over time, the gland typically stays out permanently.
What It Can Be Confused With
Not every red bump on a dog’s eye is cherry eye. Swollen or inflamed conjunctival tissue from allergies or infection can cause redness in the same area but looks more like diffuse puffiness than a distinct round mass. Tumors of the third eyelid are possible, particularly in older dogs, and these tend to have an irregular surface compared to the smooth dome of a prolapsed gland. If the third eyelid itself is elevated (covering part of the eye) without an obvious round mass, the issue may be something else entirely, such as pain within the eye or a neurological problem affecting the eyelid’s position.
Why It Needs Attention
Cherry eye is not just cosmetic. That exposed gland produces a significant share of your dog’s tears. When it sits outside its normal protected position, tear production drops and the gland itself becomes irritated from constant exposure to air and contact with the eyelids during blinking. This can lead to chronic discharge, redness, and discomfort. The longer the gland remains prolapsed, the greater the risk of developing dry eye, a condition where the eye can no longer keep itself adequately lubricated. Dry eye requires lifelong treatment with medicated drops and can lead to corneal damage if unmanaged.
The standard treatment is surgery to reposition the gland back into its normal pocket beneath the third eyelid, not to remove it. Removal was once common practice, but veterinary ophthalmologists now strongly advise against it because losing that gland dramatically increases the chance of permanent dry eye. Repositioning surgery tucks the gland back and secures it in place with stitches, preserving its tear-producing function. Success rates are high, though recurrence is possible, especially in breeds with very loose tissue.
Recovery after repositioning surgery is typically straightforward. Most dogs wear an e-collar for one to two weeks and use antibiotic or anti-inflammatory eye drops during healing. Swelling in the area usually resolves within a few weeks, and the gland becomes invisible again once it settles back into position.
How Quickly to Act
Cherry eye is not an emergency in the same way a sudden eye injury is, but it benefits from prompt attention. The American College of Veterinary Ophthalmologists notes that the risk of developing dry eye later is greatest in animals whose gland has been chronically prolapsed before surgery. In practical terms, this means waiting weeks or months to address the issue can worsen the long-term outcome. If you see that telltale red lump, scheduling a veterinary visit within a few days is reasonable. Keeping the eye lubricated with artificial tears in the meantime can help reduce irritation to the exposed gland.