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Posted on 05-10-2018

Why is picking up dog poop so important?

Picking up after your dog is the ethical and responsible thing to do as a pet owner and community member of Lafayette, Colorado.  But when it’s late, and you’re tired, and Fido just left a nasty pile on your walk, who’s looking, and who will know?  What could possibly happen? 

Lafayette Companion Animal Hospital would like to share with you the following information about dog poop and what could be lurking inside that mess:

The challenge is that Fido’s mess can actually spread diseases and parasites, not only to other dogs, but also children and people with impaired immune function. This spread is called a zoonotic infection. Zoonotic infections are those that can cause disease not only in the normal host animals, but can also infect humans, usually causing aberrant disease processes.  Zoonotic infections of the greatest importance for fecal spread include:

Internal Parasites:

  • Hookworms
  • Roundworms
  • Tapeworms
  • Whipworms


  • Cryptosporidium
  • Giardia
  • Toxoplasma


  • E. coli
  • Salmonella

Infections are spread through fecal contamination of the areas where dogs have defecated.  Unfortunately, there are usually no external signs that a dog is carrying gastrointestinal worms as dogs shed the microscopic eggs produced by the worms.  With tapeworm infection you may see what looks like grains of rice adherent to fur around a dog’s rectum.  Parasite infection may only be found by performing a microscopic fecal analysis at your veterinarian’s office. 

Hookworm infections are spread when an animal passes hookworm eggs in their stool.  These eggs and larvae may be found in the dirt for years following when they are deposited in the ground.  People may become infected while walking barefoot or when exposed skin comes into contact with infected ground (like a playing child).  Hookworm infections can cause a condition called cutaneous larval migrans, where the larva of the worms burrows under the skin revealing red, raised tracks which follow the worms’ migration.  The larvae can also infect the intestine causing abdominal pain, diarrhea and discomfort.  Hookworm eggs and larvae are incredibly resistant to weather and dying, so the only way to eliminate infected areas is removal of the sod and top few inches of soil.

Roundworm infections are the most common parasite of zoonotic concern for humans.  People become infected by accidentally ingesting the infective eggs from the soil or other contaminated surfaces.  This happens most commonly through children playing on the ground, and putting toys or other objects in their mouths, or even licking their fingers prior to being washed.  These infections can manifest in 2 ways:

  • Ocular toxocariasis- an infection of the eye that can cause blindness
  • Visceral Toxocariasis- an infection of the body’s organs or nervous system, which may cause fever, coughing, asthma, pneumonia, or other symptoms dependant on the affected system.

The best way to keep your dog healthy, and prevent infection and spread of these parasites is to have a routine fecal exam performed at Lafayette Companion Animal Hospital’s office semiannually.   Administering a monthly heartworm preventative that includes a broad spectrum gastrointestinal dewormer to your dog, year round, can also help protect your pet and family from these parasites.  Please pick up any fecal material from common areas immediately, and best practices are to clean yards preferably daily, but at least weekly.  Keeping your dog leashed while walking in common areas of Lafayette, CO will facilitate removal of waste promptly.

For further information, please visit www.capcvet.org



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