Tumors develop when cells in the body grow uncontrollably. Finding a tumor on your dog can be very frightening, but they are not always detrimental — some are benign, while others are malignant.

Meera Pal is a Northern California-based writer with a background in journalism and books. She covers pets, real estate, tech, and everything in between. You can follow her on Twitter @Meerakat Kelly ...

It’s important to avoid excessive sun exposure because of the problems it causes, from painful sunburn to skin cancer. Like ...

Researchers from California and Denmark were recently awarded the Nobel Prize in chemistry for the development of what’s called “click” chemistry.” This novel method enables researchers to put ...

A study found that meningiomas — the most common type of brain tumor in humans and dogs — have similar genetic makeup Nicholas Rice is a Senior Editor for PEOPLE Magazine. He began working with the ...

Q: I recently adopted Missy, my mother’s middle-aged, mixed-breed dog. She was never spayed, and she has two small masses in her mammary glands. Are these masses likely to be cancer? If not, should I ...

Canine lymphoma is the most commonly diagnosed cancer in dogs. This is why November 7th has been designated as National Canine Lymphoma Awareness Day. This day was created in 2015 by Terry Simmons, a ...

Researchers have found a very high prevalence of Bartonella bacteria in tumors and tissues - but not blood samples - taken from dogs with hemangiosarcoma, a cancer of the blood vessels. Researchers ...

A lipoma is a benign (noncancerous) tumor of fat in middle-aged or older dogs. Lipomas can grow anywhere on the dog's body, even inside their abdomen. But the most common growth is under their skin ...