After a dog bite, the immediate priority is stopping any bleeding, cleaning the wound thoroughly, and deciding whether you need medical attention. What happens next depends on the severity of the bite, where it is on your body, and whether the dog’s rabies vaccination status is known. Most dog bites heal within one to several weeks, but infection is a real risk that requires watching for in the days that follow.
Cleaning the Wound Right Away
The single most important thing you can do after a dog bite is wash it, and wash it well. Use mild soap and warm running water, rinsing the wound for three to five minutes. This isn’t a quick rinse under the faucet. You want a steady stream of water flushing bacteria out of the wound. If the bite is bleeding, apply firm pressure with a clean cloth or bandage first, then clean it once the bleeding slows.
After washing, apply a thin layer of antibacterial ointment and cover the wound with a dry, sterile bandage. Avoid hydrogen peroxide or rubbing alcohol. Both can damage tissue and actually slow healing. In the days that follow, wash the area with clean water twice daily and re-bandage it. A thin layer of petroleum jelly over the wound helps keep it moist while it heals.
When the Bite Needs Medical Attention
Not every dog bite requires a trip to the doctor, but many do. You should seek prompt medical care if:
- The wound is deep. Puncture wounds from canine teeth can push bacteria deep into tissue where surface cleaning can’t reach.
- The skin is badly torn or crushed. Bites that rip skin or cause significant tissue damage often need professional wound management.
- Bleeding won’t stop after several minutes of firm, steady pressure.
- The bite is on the face, hands, or feet. These areas carry higher infection risk or cosmetic concerns.
- You don’t know the dog’s vaccination history, or the dog was acting strangely. Rabies, while rare in domestic dogs, is almost always fatal once symptoms appear.
- Your tetanus shot is outdated. If you haven’t had a tetanus booster in the past five years and the wound is deep or dirty, you’ll likely need one.
What Happens at the Doctor’s Office
A healthcare provider will typically re-clean the wound more thoroughly, sometimes using pressurized irrigation to flush out bacteria. They’ll assess the depth and type of injury to decide how to manage it.
One thing that surprises many people: dog bites are often left open rather than stitched shut. Closing a bite wound traps bacteria inside, which can lead to a serious infection. The World Health Organization recommends postponing sutures on bite wounds as a precaution against both rabies and bacterial infection. Puncture wounds and any bite that looks potentially infected are usually left to heal on their own.
There are exceptions. Bites on the face are more likely to be sutured because facial tissue has strong blood flow and heals well, and leaving a facial wound open creates visible scarring. Fresh wounds less than eight hours old in areas with good circulation may also be closed. But for most bites on the arms, legs, or hands, expect the wound to be cleaned, bandaged, and left open.
If infection risk is high, you may be given a short course of preventive antibiotics, typically for about three days. If an infection has already set in, that course extends to five to seven days.
Infection Risk Is Higher Than You’d Think
A dog’s mouth harbors a complex mix of bacteria. The most commonly identified bacteria in dog bite wounds include Pasteurella species (found in about 50% of bites), Streptococcus species (46%), and Staphylococcus species (46%). Several types of anaerobic bacteria, which thrive in deep, oxygen-poor wounds, are also common.
Pasteurella is particularly worth knowing about because it can cause infection to develop fast, sometimes within 24 hours of the bite. A wound that looked fine in the morning can be red, swollen, and oozing by evening.
Watch for these signs of infection in the days following a bite: increasing redness spreading outward from the wound, swelling that gets worse rather than better, warmth around the bite, fever, and any discharge (especially if it’s cloudy or foul-smelling). These symptoms can develop anywhere from one to three days after the bite, though some infections take longer to appear. If you notice any of these changes, get medical attention quickly. Skin infections from bites can spread to deeper tissue and become serious if untreated.
Rabies Evaluation and the 10-Day Window
If there’s any question about rabies, the dog will be quarantined and observed for 10 days. This applies even to vaccinated dogs, because vaccine failures, while rare, do happen. During this observation period, authorities watch for signs of rabies in the animal. If the dog remains healthy after 10 days, it was not shedding rabies virus at the time of the bite.
If the dog is a stray, can’t be found, or is showing neurological symptoms, your doctor will likely recommend starting rabies post-exposure treatment right away. This involves a dose of rabies immune globulin (injected around the wound site) plus a series of four vaccine doses given over two weeks: on the day of your first visit, then again on days 3, 7, and 14. The vaccines go in the upper arm, not the stomach, despite what older stories might suggest. Starting treatment promptly is critical because rabies is nearly 100% fatal once symptoms develop, but the vaccine is highly effective when given before symptoms begin.
If the dog’s owner can provide proof of current rabies vaccination and the dog appears healthy, rabies treatment for the bite victim is usually not necessary. The dog will still be observed for 10 days as a precaution. If an owner declines to have their dog observed, the animal faces a strict four-month quarantine.
How Dog Bites Heal
Healing time varies widely. A minor bite with superficial skin damage can heal in about seven days. Deeper bites, especially those left open to prevent infection, take considerably longer, sometimes several months. Wounds that required stitches or that became infected will also have a longer recovery.
During the first few days, expect some swelling, bruising, and soreness around the wound. This is normal. What you’re watching for is the difference between expected inflammation (which improves each day) and infection (which gets worse). Keep the wound clean, change bandages daily, and let it breathe when possible.
Scarring depends on the bite’s depth, location, and how it was treated. Bites that were sutured tend to leave neater scars. Wounds left open to heal from the inside out produce wider, more irregular scars. Facial bites, despite being more alarming initially, often heal with less visible scarring because of the face’s rich blood supply. For deeper scars, options like silicone sheets, massage, and later cosmetic procedures can reduce their appearance, but the remodeling phase of wound healing continues for months. A scar’s final appearance at three weeks is not its final appearance at six months.
Reporting the Bite
Most jurisdictions require dog bites to be reported to local animal control or public health authorities. If you go to an emergency room or urgent care, the facility will typically file a report. This triggers the 10-day observation period for the dog and creates a record that can matter if the dog has bitten before or if you need documentation for insurance or legal purposes. If you treat the bite at home but know the dog, reporting it yourself to animal control ensures the dog is monitored for rabies and that the incident is on record.