San Francisco's unique geography and culture create specific pet emergencies. Discarded marijuana edibles are the fastest-growing pet emergency in SF. Steep hills cause ACL tears and joint injuries. Ocean Beach riptides and toxic algae at Lake Merced are seasonal threats. The city's compact density means coyotes, raccoons, and rats are everywhere.
Marijuana Edible Ingestion: SF's #1 Growing Emergency
Since legalization, marijuana edible ingestion has become the fastest-growing pet emergency in San Francisco. Dogs find discarded edibles on sidewalks, in parks (especially Golden Gate Park and Dolores Park), and even in apartment building hallways.
Why it's dangerous: THC is toxic to dogs. Edibles also often contain chocolate and xylitol (artificial sweetener), both of which are independently toxic. The combination can be lethal.
Warning signs: Wobbling, dilated pupils, drooling, urinary incontinence, slow heart rate, low body temperature, and in severe cases, seizures and coma.
What to do: Do NOT wait to see if symptoms improve. THC toxicity can last 24-72 hours and severe cases require IV fluids, anti-nausea medication, and monitoring. Call our emergency vet immediately. There's no judgment — we see this multiple times per week.
Steep Terrain Injuries: ACL Tears and Falls
San Francisco's famous hills aren't just challenging for humans — they're a leading cause of orthopedic injuries in dogs. Running up and down steep grades puts enormous stress on joints, especially the cranial cruciate ligament (ACL equivalent in dogs).
Highest-risk breeds: Large breeds (Labradors, Golden Retrievers, Rottweilers) and overweight dogs. The repetitive stress of daily walks on SF hills accelerates joint wear.
Warning signs: Sudden limping, holding one leg up, swelling around the knee, reluctance to climb stairs, and sitting with one leg extended to the side.
What to do: Restrict activity immediately. Do NOT let your dog run or jump. An orthopedic evaluation with X-rays is essential. Untreated ACL tears lead to arthritis and damage to the opposite leg (50% of dogs tear both ACLs).
Ocean Beach Hazards
Ocean Beach is one of SF's most popular dog areas, but it's also one of the most dangerous. Strong riptides, sneaker waves, and frigid water temperatures (50-55°F year-round) create life-threatening conditions.
Specific dangers: Hypothermia from cold Pacific water (dogs lose body heat 25x faster in water than air), riptides that pull dogs out to sea, and sand impaction from dogs who eat sand while playing.
Warning signs of sand impaction: Vomiting, constipation, abdominal pain, and lethargy. Sand accumulates in the intestines and can cause a life-threatening blockage.
Prevention: Keep dogs on leash near the waterline. Limit swimming to calm days. Bring fresh water to prevent saltwater drinking. Watch for excessive sand eating during fetch games.
Urban Wildlife Encounters
San Francisco's coyotes, raccoons, skunks, and rats carry diseases and can injure pets. Coyote sightings have increased dramatically in the Sunset, Richmond, and Twin Peaks neighborhoods.
Raccoon dangers: Raccoons carry canine distemper, leptospirosis, and rabies. They're aggressive when cornered and can seriously injure cats and small dogs. They're common in backyards throughout SF.
Skunk spray: While not a medical emergency itself, skunk spray in the eyes causes intense pain and temporary blindness. Flush eyes with saline solution and seek vet care if redness persists.
Rat-borne diseases: Leptospirosis is transmitted through rat urine in puddles and is increasingly common in SF. The leptospirosis vaccine is essential for all SF dogs.
Don't wait — every minute counts in a pet emergency. Our San Francisco emergency vet team is standing by 24/7.
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