Spa treatments don't stop with people. You won't see any aromatherapy candles around, but animals get massages, too. It's become a regular service that many pet owners value.
"People call me because their dogs are having problems," said Shelah Barr. She is a San Francisco dog massage therapist. "The work I do is important for animals so they have a high quality of life."
Practitioners say massage can be a preventive measure for younger animals and rehabilitative for older ones by boosting flexibility, circulation and immunity. As its popularity continues to grow, primarily among dog and horse owners, so does the debate about regulation. Some veterinarians argue that pet massage is a form of veterinary medicine that requires a license. Whether therapists need one varies by state.
Pet owners spent $4.4 billion last year on "other services." That category includes grooming, training and services such as massage, according to the American Pet Products Association. It tracks national spending trends in the pet industry. That is a 6.1 percent jump in spending from 2012.
Massage sessions can last 30-40 minutes. Therapists travel to homes, hotels and even an owner's workplace, said Barr, who has been practicing in San Francisco since 2006.
"There are a couple of tech companies I go to. They have a quiet office I can go into and work on the animal," said Barr. She typically sees about 15 pets a week.
The treatments don't necessarily mean incense burning around a massage table. Barr is guided by what the dog desires. Sometimes that means the pet chews on a bone the whole time.
Grace Granatelli, an animal masseuse in the Phoenix suburb of Scottsdale, said she would play new-age music or "spa sounds," which help relax dogs.
In her sessions, Granatelli would have the dog lie down on the floor or its bed. She would start by massaging its neck. She would then move to other areas, including legs and hips. But it's not crucial that the dog lie down or sit still.
The American Veterinary Medical Association classifies animal massage as a form of veterinary care that should require a license. It is up to each state's veterinary licensing board whether to categorize it that way.
"We do consider them veterinary procedures. And we feel the same standards should be used because a lot of harm can come from them," association assistant director Adrian Hochstadt said.
Carol Forrest, a former client of Granatelli's, said her Dachshunds, Maxie and Lucy, got regular massages for five years. The two were able to relax after a massage despite dealing with issues such as arthritis. Forrest said she believes massage benefits dogs as much as people.
Critical thinking challenge: Why is quiet or soothing music part of the massage treatment?