Raccoon eyes are dark, purple-blue bruises that form around one or both eyes, and they signal that blood has leaked into the soft tissue surrounding the eye sockets. The most common cause is trauma, particularly a fracture at the base of the skull. But raccoon eyes can also appear without any head injury at all, pointing instead to conditions like amyloidosis, certain cancers, or even recovery from facial surgery. The bruising can take up to three days to appear after the triggering event and typically one to two weeks to fully resolve.
Why Blood Pools Around the Eyes
The skin around your eyes is some of the thinnest on your body, and the tissue underneath is loose and highly vascular. When blood vessels in or near the skull break, gravity and tissue pressure guide that blood downward and forward into the eye socket area. A structure called the orbital septum, a thin membrane attached to the eyelid, acts like a barrier that traps the leaked blood in the periorbital space. That’s why the bruising stays concentrated in those dark rings rather than spreading across your whole face.
Basilar Skull Fracture
The most serious and well-known cause of raccoon eyes is a fracture at the base of the skull, called a basilar skull fracture. These fractures typically result from significant blunt force, such as a car accident, a fall from height, or a severe blow to the head. When the fracture runs through the anterior cranial fossa (the part of the skull base behind your forehead and above your eye sockets), blood seeps forward into the periorbital tissue.
Bilateral raccoon eyes, meaning bruising around both eyes, are highly predictive of a basilar skull fracture. Other signs that often appear alongside them include bruising behind the ear (known as Battle sign), clear fluid draining from the nose or ears (which may be cerebrospinal fluid leaking through a tear in the protective membranes around the brain), and hearing changes from blood pooling behind the eardrum. CT scanning is the primary tool used to confirm these fractures, and thin-slice imaging with multiple angles is sometimes needed to catch fractures in the temporal bone that standard scans can miss.
Other Traumatic Causes
Not every case of raccoon eyes involves a skull fracture. Direct facial trauma, like a broken nose, a blow to the forehead, or an orbital fracture (a break in the bone around the eye socket itself), can produce similar bruising. Facial and nasal surgeries are another common trigger. After rhinoplasty, for example, bruising typically appears as dark purple or blue discoloration around the eyes and upper cheeks within the first one to three days, peaks around day three or four, and fades enough to cover with makeup by day seven to ten. Most post-surgical bruising clears within seven to fourteen days.
Even forceful sneezing, coughing, or vomiting can occasionally cause periorbital bruising, likely from sudden pressure spikes in the small veins around the eyes.
Amyloidosis and Blood Cancers
Outside of trauma, amyloidosis is one of the most common causes of raccoon eyes. In this condition, abnormal proteins called amyloid deposits build up in the walls of tiny blood vessels, making them extremely fragile. The blood vessels around the eyes, nose, and mouth are especially vulnerable because they’re already delicate. Even minor strain, like rubbing your eyes, bending over, or coughing, can rupture these weakened capillaries and produce bruising that looks identical to trauma-related raccoon eyes.
The type most associated with raccoon eyes is AL amyloidosis, which involves light-chain proteins produced by abnormal plasma cells in the bone marrow. Multiple myeloma, a blood cancer, can trigger the same process. Amyloid proteins infiltrate the capillaries, and those capillaries can burst under stress that wouldn’t affect healthy vessels. The bruising in these cases is often painful and may recur.
Neuroblastoma in Children
In children, raccoon eyes carry a distinct concern: neuroblastoma, a cancer that develops in nerve tissue and most commonly affects kids under five. When neuroblastoma spreads to the bones around the eye sockets, it can produce periorbital bruising and bulging of the eye. In one population-based study, 43% of children with neuroblastoma had eye-related signs, and periorbital ecchymosis was the most frequent, appearing in 67% of those with orbital involvement. In two cases, the bruising was the very first symptom that led to the cancer diagnosis.
Orbital involvement in neuroblastoma signals advanced disease (stage IV), and the prognosis in these cases is poor. In the same study, none of the six children with eye involvement survived long-term, compared to a 50% five-year survival rate for the overall group. This is why unexplained bruising around a child’s eyes, especially if it appears without a clear injury, warrants prompt medical evaluation.
How Raccoon Eyes Differ From Allergic Shiners
Dark circles under the eyes don’t always mean raccoon eyes. Allergic shiners, the shadowy discoloration common in people with nasal allergies, can look similar at first glance but are fundamentally different. Allergic shiners result from congestion in the small veins beneath the eyes, not from blood leaking into the tissue. They tend to be lighter in color (more of a dusky blue-gray than deep purple), they don’t involve swelling or tenderness, and they come and go with allergy flare-ups.
Raccoon eyes, by contrast, involve actual bruising: a progressive color change from dark purple-blue to red, then green and yellow as the body reabsorbs the trapped blood. They’re usually accompanied by noticeable swelling and may be tender to touch. Other causes of dark under-eye circles include sleep deprivation, dehydration, sinus infections, and genetics, none of which produce the dramatic, bruise-like appearance of true raccoon eyes.
What the Healing Process Looks Like
Raccoon eyes from any cause follow the same general healing pattern. The bruising starts as a deep blue or purple, shifts to red and pink over several days, then transitions through green and yellow before your normal skin tone returns. On average, the full cycle takes one to two weeks. After trauma, the bruising may not appear immediately. It can take up to three days for the blood to migrate into the periorbital area, which is why raccoon eyes sometimes show up well after the initial injury.
The speed of healing depends on the underlying cause. Post-surgical bruising tends to resolve on the faster end, often fading significantly by day seven. Bruising from a skull fracture may take the full two weeks. In cases tied to amyloidosis or blood cancers, the bruising may recur until the underlying condition is treated, since the fragile blood vessels remain vulnerable to repeated rupture.