There are three species of hookworms that afflict dogs. These parasites are most prevalent in areas of high temperature and humidity (such as the southern United States), where conditions are favorable for the rapid development and spread of larvae.
Hookworms are small, thin worms about one-quarter to one-half inch (.6 to 1.3 cm) long. They fasten their mouth parts onto the mucosa of the small intestines and suck blood and tissue fluids from the host. This can result in severe blood loss and malnutrition...
Dog Stomach Swelling: Common Causes and Treatments
Because stomach swelling in dogs can be dangerous, never try to diagnose the cause of your dog's stomach trouble yourself. If your dog's abdomen looks bloated or unusual, get your pet to a veterinary hospital or emergency veterinarian immediately, as timing can be critical.
Called "the mother of all emergencies," untreated gastric dilatation and volvulus (GDV) can be fatal to a dog within hours. Bloat happens when gas or food stretch a dog's stomach. GDV happens when the distended stomach rotates, trapping the gas inside, and blocking off the stomach's blood supply.
Extremely painful, there doesn't seem to be one cause for GDV, though swallowing air plays a part; heavy exercise after a meal can be a trigger, too. The exact cause of GDV is still debated. A few of the many proposed things that can increase a dog's GDV risk include:
Being deep-chested. Breeds like the Great Dane, St. Bernard, and Weimaraner are at the greatest risk for bloat; as a matter of fact, dogs weighing over 99 pounds have a 20% bloat risk. Though rare, small dogs can also suffer from the condition.
Feeding your dog only one meal a day.
A family history of bloat/GDV.
Eating too quickly.
Being older; dogs between 7-12 years old are at highest risk.
Treating bloat requires immediate emergency care and may include decompressing the stomach (releasing excess gas from the stomach), managing shock, and stabilizing the heart, often followed by surgery once stable. If your dog's abdomen looks swollen or distended, or if your dog seems uncomfortable, don't wait; rush your pet to a veterinary hospital immediately.
Preventing bloat is hard because so many things may play a part in causing it, but a few things you can do that may reduce your dog's risk include: