There are various intestinal worms that can infect dogs and cats, with hook worms, round worms (ascarids), whip worms (mainly in dogs) and tapeworms being the main groups. Symptoms can include diarrhoea, bloody stools, weight loss, anaemia, pot belly, dry hair and/or general poor appearance. If left untreated, worm infestations can be fatal. Worms can be picked up from the mother (either in utero or via milk), from the environment (infected stools), from eating infected prey (lizard or mouse), or, in the case of tapeworms, from fleas. Worms can also be transmitted to humans.
It is important to buy your dog from a reputable source. Purchase your dog from a reputable dog breeder, visit an RSPCA Adoption Centre or a local animal welfare shelter such as the RSPCA where lots of happy and healthy dogs are looking for loving new homes. If you are looking to adopt a dog from a breeder, make sure you read our Smart Puppy Buyers Guide.
Keep your dog busy by prolonging his mealtime with a number of interactive toys such as Kongs, treatballs, or Bustercubes (treats can be easily pushed in but will engage your dog for hours trying to get them out). Also try hiding part of his meal around the yard to stimulate his natural foraging instincts. Treats and toys are available at the RSPCA online shop.
Giardia intestinalis and Giardia duodenalis are single celled protozoan parasites, which inhabit the affected dog’s small intestine, causing clinical signs of Gardiasis. The protozoa attach themselves to the intestines and multiply. They may be directly swept through the intestines and appear in the infected dog’s faeces or they may develop into a tougher more durable ‘cyst’ form, which is again passed in the dogs faeces but is able to survive for long periods in the external environment. Dogs are infected by ingesting the cysts from contaminated water and the environment. Infected dogs may not show any clinical signs of Gardiasis, but they can still shed the protozoa from their systems, spreading the infection to other healthy animals.   Infection and subsequent illness is more commonly seen in younger animals. Signs of infection include: chronic or intermittent diarrhoea that may appear ‘fatty’ and slimy, accompanied by a very foul smell. Weight loss is also possible if left untreated.
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