Dog Bite Leads to Severe Infection and Lifelong Consequences

A man from Australia, who was bitten by his own dog, ended up with a life-threatening infection known as sepsis, resulting in permanent disfigurement.

The incident occurred while he was asleep, and, unaware that his dog was beside him, he rolled over and accidentally hit the pet in the face. Startled, the dog reacted by biting the man on the wrist.

Initially, he dismissed the bite, but three days later, he sought medical help when his arm started swelling and developing red, coin-sized pustules.

Upon going to the hospital, he experienced a drastic drop in blood pressure, plummeting to 53/30, a startling contrast to the normal range of 120/80.

This dangerously low blood pressure signified a severe lack of oxygen in his bloodstream, which, if ignored, could lead to the failure of vital organs like the heart and brain.

Doctors diagnosed him with necrotizing fasciitis, commonly referred to as ‘flesh-eating disease,’ a rapid, severe bacterial infection that destroys healthy tissue.

As the infection spread and infiltrated his bloodstream, it triggered sepsis, a dangerous immune response that can severely compromise blood pressure and lead to organ damage.

It’s uncertain which specific bacteria caused the infection, but medical professionals indicated it was likely from something that “lives on human skin.”

Human skin is home to about 1,000 species of generally harmless bacteria, including Staphylococcus aureus and Streptococcus pyogenes, both common in a significant percentage of the population.

According to doctors, the chance of bacteria entering his bloodstream through a dog bite was estimated to be around one in 10,000.

The man shared on Reddit that doctors believed the bacteria likely originated from his skin rather than the dog’s mouth.

Group A Streptococcus (GAS) is typically responsible for necrotizing fasciitis, which eats away at skin, muscle, and tissue, often resulting in mortality rates as high as one in five.

He remarked, “As soon as I woke up and saw my arm, I realized I was in trouble. I consider myself lucky to have woken up—if I hadn’t, I might not be here today.”

At that point, his arm was “bright red,” swollen to three times its normal size, and covered with pustules. Despite the alarming appearance, he felt only minimal pain, akin to a sunburn, but was also experiencing dizziness and nausea.

The bacteria’s entry into his bloodstream initiated a systemic immune response known as sepsis, affecting 350,000 Americans each year and claiming a life approximately every 90 seconds.

Treatment for sepsis typically involves antibiotics and vasopressors, medications that redirect blood flow to essential organs. However, this can divert blood from limbs, heightening the risk of tissue death and potential amputations.

After urgent surgery, doctors successfully saved his arm, although it was a close call. The infection didn’t reach the bone, but over the past four years, he has had 20 surgeries to remove dead tissue and rebuild areas of his body affected by the infection.

He mentioned that his arm has regained about 90% functionality, yet he still requires regular monitoring due to lasting damage to vital organs from the sepsis.

He expressed, “We’re still assessing the extent of the damage, but I’m feeling optimistic. My final liver scan is this Friday; my kidneys seem fine, and my heart has only sustained minor damage. My brain health is still up in the air.”

Although he’s experiencing some cognitive slowing and memory issues, he attributes this to ongoing medication.

The total cost for his treatment reached about $500,000 AUD (around $325,000 USD), but due to Australia’s universal healthcare system, his out-of-pocket expenses were around $1,000 AUD (approximately $650 USD).

While the dog bite set off this health crisis, the man does not hold a grudge against his dog, named Scotty, who remains by his side.

“He has been my companion throughout this ordeal,” he said. “Animals don’t intend to hurt; sometimes, it just happens.”

He advised anyone with deep wounds to clean, disinfect, and dress them immediately after stopping any bleeding, stressing the importance of seeking medical attention without delay. He regretted waiting a day because his regular doctor was unavailable, stating, “I should have gone straight to an emergency department or urgent care for antibiotics.”