If your dog has had fleas, there’s a chance they have tapeworms too. Tapeworm segments are easily seen around your pet’s anal region or in their poop, similar to grains of white rice. It’s not always obvious, though, that your dog has tapeworms, so the best way to identify a problem is through an exam performed by a veterinarian. Use Bayer Tapeworm Dewormer for Dogs to treat your pet. Tapeworms can transmit to dogs when they inadvertently consume fleas, most commonly when they lick, chew or bite at their hair and skin to relieve itching.