The average spay or neuter vet surgery is $110 to $175. This increases with larger dogs. The more a dog weighs, the higher the price. One clinic charges $213 for a 50-pound dog surgery spay and $169 for a 50-pound male dog. If the female is in heat, the cost increases more.
They are usually spread like this: 1  A child swallows pinworm eggs, and they travel to the child's intestines. 2  In about a month, the eggs hatch into worms. 3  At night the female worms crawl out the rectum and lay eggs around the child's anus. 4  When the worms lay eggs, it can cause itching.
Almost the entire body of a gravid female becomes filled with eggs. The estimations of the number of eggs in a gravid female pinworm range from about 11,000 to 16,000. The egg-laying process begins about five weeks after initial ingestion of pinworm eggs by the human host. The gravid female pinworms migrate through the colon towards the rectum at a rate of 12 to 14 cm per hour.