What is "Limber/Retriever/Cold" Tail?

A tail without a wag 

For an owner, the sight of a normally active tail hanging lifelessly can be alarming. After all, dogs’ tails are barometers of both mood and health, and a tail carried low and motionless could indicate anything from nervousness to serious illness. Limber tail syndrome has been around for a long time, but it isn’t very common and many veterinarians – especially those who don’t work regularly with hunting or retrieving dogs – aren’t familiar with it.
The syndrome seems to be caused by muscle injury possibly brought on by overexertion, says Janet Steiss, DVM, PhD, PT. Steiss is an associate professor at Auburn University’s College of Veterinary Medicine and coauthor of the 1999 study on limber tail that pinpointed the nature of the muscle damage. Researchers used electromyography (EMG), imaging, and tissue testing on dogs affected with limber tail and concluded that the coccygeal muscles near the base of the tail had sustained damage.
The muscle injury of limber tail is characterized by a markedly limp tail, which can manifest in several different ways.
“You can see varying degrees of severity,” says Dr. Steiss. “The tail can be mildly affected, with the dog holding the tail below horizontal, or severely affected, hanging straight down and looking like a wet noodle, or anything in between.”
In some dogs, the tail may stick out a couple of inches before drooping; others may exhibit raised hair near the base of the tail as a result of swelling. Depending on the severity of the injury and the dog’s tolerance to pain, some animals may have difficulty sitting or lying down. And many dogs reduce or eliminate wagging entirely, probably due to soreness.
Limber tail can occur in any dog with an undocked tail, but certain breeds, especially pointing and retrieving dogs, seem particularly susceptible to it. Both sexes and all ages can be affected. Other common names for the condition are “cold tail” (especially among Retrievers, who often exhibit symptoms after swimming in frigid water), “limp tail,” “rudder tail,” “broken tail,” or even “dead tail.”
The condition resolves over the course of a few days or a week and usually leaves no aftereffects. According to Dr. Steiss, there is anecdotal evidence that administering anti-inflammatory drugs early in the onset can help shorten the duration of the episode, but no veterinary studies have yet confirmed this.
The exact cause is unknown, but according to Dr. Steiss, there are a few different factors that seem to be linked to limber tail. Overexertion seems to be a common precursor, especially if an animal is thrown into excessive exercise when he or she is not in good condition.
“For example, if hunting dogs have been sitting around all summer and then in the fall, the owner takes them out for a full (weekend of hunting), by Sunday night suddenly a dog may show signs of limber tail,” she says. “The dog otherwise is healthy but has been exercising to the point where those tail muscles get overworked.”
Another risk factor is prolonged confinement, such as dogs being transported in crates over long distances. If competition dogs are driven overnight to a field trial and don’t have a few breaks outside the crate while they’re on the road, says Dr. Steiss, they may arrive at their destination with limber tail.
Uncomfortable climate, such as cold and wet weather, or exposure to cold water may also trigger limber tail. Retrievers seem particularly prone to exhibiting symptoms after a swimming workout, and some, says Dr. Steiss, are so sensitive to temperature that they show signs of limber tail after being bathed in cold water.
“Limber tail has an acute onset. It is not a condition where the tail gets progressively weaker,” she says. “Instead, it is an acute inflammation. Typically, the tail is suddenly limp and the dog may seem to have pain near the base of the tail. Over the next three to four days, the dog slowly recovers to the point where by four to seven days he’s usually back to normal.”
While an episode of limber tail can be unsettling for an owner, it doesn’t hamper most dogs’ ability to function normally.
Limber tail doesn’t recur with any regularity among dogs that have already experienced one episode, according to Dr. Steiss: “In the majority of cases it happens once and doesn’t happen again,” she says. “But there are a few dogs where, if put into the same situation, it happens more than once.”

Life after limber tail
According to Dr. Steiss, researchers don’t believe there’s any underlying pathology to the muscles in afflicted dogs, nor is there any suggestion that a propensity for limber tail is genetic. As noted, while some breeds may be more prone to it – most likely due to their higher activity levels – any dog with a full tail is susceptible.
If your dog develops limber tail, treatment should include at least a few days of rest. Depending on the advice of your veterinarian, you may also administer an anti-inflammatory in the first 24 hours, under the direction of a vet. There is no evidence that anti-inflammatories speed healing, but some owners say they’ve noticed faster improvement when the medications are part of the mix.
Owners should also consider what activities their dogs were engaged in prior to the onset of the condition. Limber tail will show up quite soon after the triggering event, usually within hours or overnight.
Finally, ease your dog into any intense activity to slowly improve his condition. Many cases occur when a dog is a couch potato in the off-season and then plunges back into hunting or training full time.