Why Is My Dogs Anus Swollen

There are several causes for your dog’s anal area to be bloated, red, and itchy, including allergies, flea infestations, worms, overgrown hair, grooming, fecal contamination, diarrhea, and breed predisposition.

Rarely, a tumor may be hiding the swelling bottom; however, this is not a cause for concern.

Overgrown hair

A red and bloated dog bottom is frequently caused by overgrown hair, especially in long-haired breeds.

Some of the dog’s excreted feces becomes trapped on the hair when the owners allow the hair to overgrow.

The skin around the anus becomes irritated when fecal matter comes into touch with it for an extended period of time.

The issue can be resolved by clipping the extra hair and then carefully washing the region.

Grooming issues

They can develop into significant skin irritation after beginning as red lines on the skin.

Blades that are too hot or too dull might hurt sensitive places like the anal area.

Fortunately, clipper burns only last a short time, and your dog can get through them with the help of an Elizabethan collar (also known as a shame cone) and anti-inflammatory creams.


When a dog battles with diarrhea, fecal contamination of the rear end can cause skin irritation and itching.

The diarrhea’s low pH burns the dog’s skin, causing him to bite himself, infecting the area and exacerbating the symptoms.


Anytime a pet scratches or bites excessively, allergies and hypersensitivity should be suspected. Food allergies in dogs cause them to vomit, produce diarrhea, and scratch themselves.

The same symptoms are triggered by environmental allergens like pollen or household dust, but there are no gastric problems.

Flea infestation

More frequently than we’d like to acknowledge, flea infestations cause hypersensitivity.

Dogs with obvious bald and red patches brought on by flea infestations are said to have FAD (Flea Allergic Dermatitis).

Similar to mosquito bites, flea bites also cause minor allergic reactions in the biting area.

FAD patches can develop everywhere on the body, though the skin above the tail is where they most frequently appear.


When a scooting dog is seen, the majority of veterinarians will first examine the dog’s deworming history and may even administer tapeworm and hookworm medicine just in case.

While medication might be needed in situations with symptoms, natural deworming with coconut oil and rumen can assist.


Some dogs may be more likely than others to have bloated behinds due to breed predisposition.

Breeds with deep skin folds and crude tails, such as English Bulldogs and Pugs, are prone to persistent skin infections.

There is very little air moving through the moist, greasy skin at the base of the skin folds and the area of skin trapped beneath the non-functioning tail.

For the dog, an overgrowth resulting in a major infection is excruciatingly painful and uncomfortable.

Less frequently, perineal and rectal tumors, ulcers and fissures, and perineal fistulas can cause problems with the dog’s bottom.

Anal sac illness is most likely the main cause of all cases of rear-end itching in dogs.

Why does my dog’s anus protrude?

Rectal tissue can protrude through the anus in dogs with rectal prolapse. It typically results from your dog constantly straining while urinating or poops. Prolapse comes in two different forms:

Partial prolapse: The anal and/or rectal tissue protrudes through the anus, but only a little amount of it is visible. When your dog stretches, this tiny part could become visible before it returns spontaneously to its normal location inside the rectum.

Complete Prolapse: Even when your dog is not straining, all of the anal tissue and some of the rectal tissue and lining emerge through the anus. This tissue does not return to its usual position on its own.

When tissue prolapses, it frequently has a brilliant red hue and may resemble a bloated tube because the tissue is packed with fluid. If prolapse is left untreated, it may eventually turn into a complete prolapse, and the tissue may deteriorate and turn a dark color—typically blue or black—as a result of drying out. This indicates that the tissue’s blood supply is restricted, and the tissue itself may be degenerating.

How can I tell if the anus of my dog is swollen?

It is important to have your dog examined by a veterinarian if you suspect they may have an issue with their anal glands. Your dog should visit the vet as soon as possible if there are any symptoms of blood, redness, or swelling around the anus.

Here are some warning signs and symptoms to watch out for:

  • excessive licking and chewing to try and ease the itching of swollen glands around the base of the tail and around the back.
  • Dog anal glands have a distinct odor that is frequently compared to a mixture of decaying fish and feces.
  • creating a stain trail behind them while “scooting,” or dragging their bottom down the ground with their back legs extended in front.
  • There are issues, including a lot of straining and possibly painful-looking pooping.
  • oily, foul-smelling discharge spots that are often tan to brown in color are left on the floor.
  • Reluctance to touch their hind end, possibly indicating greater aggression as a result of the discomfort that swollen anal glands produce for dogs.
  • Just before further symptoms start to show, you may experience diarrhea or another stomach disturbance.

Having grown an infection:

  • In the discharge patches left on the floor, there are red spots or pus visible.
  • flowing from the anus is pus.
  • A potential abscess is indicated by a swollen spot close to the anus.
  • a hole that develops close to the anus and leaks green or yellow or crimson pus.

Why is the anus on my dog bigger?

Causes of Rectum and Anus Protrusion in Dogs a herniated perineum. frequent episodes of diarrhea that cause straining recurring constipation that causes straining Urinary illness.

What does a dog’s hemorrhage look like?

Hemorrhoids can be a humiliating and even possibly life-threatening condition for certain people. Hemorrhoids are abnormally swollen blood vessels in the anus that over time expand and begin to protrude through the anal sphincter. They are frequently a source of mild irritation, but occasionally they will be extremely painful and have a substantial influence on daily activities. Do dogs have the same chance of acquiring hemorrhoids as do humans?

Can Dogs Get Hemorrhoids?

The likelihood is quite low, and the ailment is frequently mistaken for other illnesses that frequently affect the dog’s rear end, thus the answer is yes. It is best practice to maintain your dog well-hydrated in order to make eliminating excrement more comfortable and to give them a soft place to sit on so as not to irritate any hemorrhoids your dog may be developing.

Does My Dog Have Hemorrhoids?

For the animal in question, hemorrhoids can be pretty uncomfortable, thus it is preferable to detect the issue as soon as possible to prevent it from getting worse over time. If your dog exhibits symptoms like bleeding from the rectum, pain or discomfort when attempting to sit, or whether your dog drags their rear across the ground to try to alleviate minor irritation like itching, you will be able to tell if they have hemorrhoids. When viewed in natural light, the hemorrhoids themselves can appear outside of the anus and have an inflamed, dark purple or reddish hue. Severe cases of the issue can also result in varied degrees of visible bleeding. In dogs, the illness is frequently brought on by bowel and intestine irritation, which increases blood flow to the area and causes some blood vessels in the anus wall to expand excessively. These blood vessels are then either dragged out of the sphincter by the dog passing feces or pushed out of the sphincter by muscle contractions. A physical examination of your dog is typically all that is required for a veterinarian to diagnose hemorrhoids, though additional testing could be required to identify the underlying source of the problem.

How Do I Treat My Dog’s Hemorrhoids?

The vet will be able to suggest an appropriate course of treatment once they have thoroughly evaluated your dog’s condition. Veterinarians will typically be reluctant to operate on the growths because to the risk of consequences including bacterial infections or harm to the anus. Direct physical intervention is therefore reserved for the most extreme and incapacitating cases, with less invasive techniques highly recommended in all other circumstances. Instead, the veterinarian will administer therapies like topical lotions to lessen irritation and decrease hemorrhoids, and dietary supplements to address the underlying cause of the problem. Additionally, you can utilize supplements to make your dog’s feces softer in order to decrease their impact on the growth. The blood vessel should eventually revert to something close to its usual state, allowing the dog to resume daily activities and for you to make the required lifestyle adjustments to prevent the issue from recurring.

Your pet may need to wear a safety collar during the healing process to keep them from biting at the hemorrhoids and aggravating them worse. Additionally, precautions should be made to stop them from dragging their bottoms around the floor in an effort to ease the irritation, since this can also lead to issues.

How Are Hemorrhoids Similar In Dogs and Humans?

Although there are some obvious differences between how dogs and people with other animals experience the disease, there are also some obvious similarities.

  • In all animals, there is a considerable likelihood that hemorrhoids may worsen if untreated and the underlying issue is not resolved. Extreme discomfort, internal bleeding, and bacterial infections may result from this.
  • All animals can gain from extra fiber being given to their food in order to facilitate the passing of feces, as hardened stools can be a cause and exacerbating factor for the growths.
  • Older animals are particularly prone to hemorrhoids, primarily because of poor dietary practices and a higher prevalence of other potentially linked health disorders such digestive problems.

How Are Hemorrhoids Different In Dogs and Humans?

Despite the similarities between hemorrhoids seen in different animals, there can be some significant discrepancies due to their physiological peculiarities.

  • Unlike humans and many other mammals, dogs frequently get hemorrhoids from intestinal diseases that cause long-lasting irritation of the anus and do not typically react as negatively to dehydration, etc. This is in contrast to humans and many other mammals, who typically get hemorrhoids as a result of poor diet or chronic dehydration that forces them to strain in order to pass feces, leading to an enlargement of blood vessels around the anus.
  • Dogs have a lot of different organs surrounding the anus, which means that other issues (such as swollen glands or even tumors) are sometimes mistaken for hemorrhoids. Hemorrhoids are typically relatively easy to self-diagnose in humans due to their characteristic look.
  • The use of a rubber band to tighten the blood vessel and reduce its capacity, causing it to swiftly contract, is one method used to treat severe hemorrhoids in people. due to the restraint required to avoid disturbing the band. On dogs, though, this technique is rarely applied.

Case Study

An elderly German Shepherd with what looks to be a large anal gland that is giving it some discomfort is brought into a veterinary facility. However, with closer examination, it becomes clear that the problematic mass is actually a hemorrhoid protruding from the anus. The veterinarian gives an anti-hemorrhoid ointment to the dog to alleviate the acute itch and aid in the blood vessel’s return to its original size.

Further inquiry indicates that the dog has been consuming mainly dried meals with minimal nutritional content for the previous few months as it recovers from a recent nasty stomach infection. The veterinarian suggests a meal plan and a dietary fiber supplement to help correct this and bring the dog back to eating typical, healthy food. The dog is pain-free after a month since the hemorrhoid has shrunk back down.

Express the Anal Glands

The first thing you should do if your dog is one of the many with impacted anal glands is to empty them.

Veterinarians or veterinary nurses are ideally suited to handle this task. There is no reason why you shouldn’t try, though, if you believe you can handle it.

Typically, you have to identify the anal gland in your pet’s rectum with a gloved finger, then gently compress it.

This isn’t always the case, though. Be ready for that because many dogs snap and run away. You might want to enlist some additional help.

How is a dog’s enlarged anus treated?

The two tiny pouches known as the anal sacs are situated on either side of the anus, about at four and eight o’clock. A significant number of sebaceous (sweat) glands line the walls of the sac, which produces an odorous fluid. A tiny duct or canal that opens immediately within the anus releases the fluid that has been stored in the anal sacs. The anal glands are another name for the anal sacs. Both male and female dogs have these sacs.

What is their function?

Chemicals that serve as territorial marks or “dog calling cards” are present in the secretion of the anal sac. The secretions resemble those that a skunk makes and are used to ward off predators and warn other animals of their presence. Whenever the dog passes a bowel movement, anal sac fluid is typically pushed out by muscle contractions, giving the feces a particular smell (or unique “scent signature”). This explains why dogs enjoy sniffing each other’s feces so much.

Why are the anal sacs causing a problem in my dog?

In dogs, anal sac illness is fairly prevalent. The impacted (blocked) sacs are typically brought on by duct irritation. The affected sacs’ secretion will thicken, and the sacs will swell and distend as a result. Your dog experiences pain as a result of passing excrement. Abscesses can develop because the produced material in the anal sacs provides a perfect environment for bacterial growth. The ducts make it simple for bacteria that are often found in feces to ascend and enter the sacs. In typical circumstances, the fluids that are released after a bowel movement wash the germs out. The fluid does not discharge regularly if the sacs are damaged, and they get contaminated. The fluid ultimately turns crimson, and the sacs finally fill with pus, creating an anal sac abscess.

On one or both sides of the anus, the abscess will manifest as a sore, hot, red, and unpleasant swelling. There will be a significant amount of greenish yellow or crimson pus released if the abscess rupture. The anus and rectum may suffer significant harm if the infection is not treated right away.

Changes in stool consistency are another factor in the recurrence of anal sac illness. Dogs who have digestive disorders including food allergies and inflammatory bowel disease are susceptible to this.

How will I know if my dog has anal sac problems?

Frequently, scooting or dragging the back along the ground is the initial symptom. Excessive licking or biting is possible, frequently near the base of the tail rather than the anal region. A painful condition is anal sac illness. When they have anal sac illness, even otherwise obedient dogs may snap or growl if you touch the tail or the anus. You can notice blood or pus oozing from the rectum if the anal sac ruptures.

How is anal sac disease treated?

Impaction is treated by expressing or emptying the sacs. It can be essential to flush out the afflicted sac in order to remove the crystallized material if the impaction is severe or if there is an infection. Some pets need a sedative or anesthesia for this therapy since these conditions are uncomfortable.

Antibiotics, such as clindamycin, sold under the brand names Antirobe and Cleocin, are frequently recommended orally, though they occasionally need to be injected into the sacs. The majority of dogs will need painkillers (such meloxicam, sold under the brand name Metacam) for a few days until the edema and inflammation have reduced. Surgery might be required in cases that are severe or advanced.

“Call your veterinarian right away if you think your pet might have an anal sac issue.”

In all dogs, regardless of size or breed, the anal sacs can develop issues. Call your veterinarian right away if you have any concerns that your pet might be experiencing an anal sac issue.

Is the condition likely to recur?

Dogs who are overweight frequently experience chronic anal sac issues because their anal sacs do not empty properly.

Dogs who are overweight frequently experience chronic anal sac issues because their anal sacs do not empty properly. Each impaction may result in further scarring and duct narrowing, increasing the frequency of recurrences. The sacs should be surgically removed if this issue occurs regularly.

Preventing anal sac disease entails treating the underlying cause and may necessitate switching the dog’s food to one with more fiber if the cause is a change in stool consistency.

Are anal sacs necessary for my dog? Will removal have any adverse effects?

The strong-smelling substance that the dog uses to mark his or her territory is produced by the anal sacs. This is an unneeded behavior for our domesticated dogs, and removing it won’t harm your pet.

Are there any risks associated with surgical removal of the anal sacs?

The surgical procedure to remove the anal sacs is delicate and specialized. However, in severe circumstances, your veterinarian may advise referral to a board-certified veterinary surgeon. Some veterinarians routinely do this treatment. Following surgery, some dogs may have loose stools or poor bowel control for one to three weeks. This happens as a result of the nerves that pass through the soft tissues close to the anal sacs and govern the anal sphincters, the muscles that close the rectum. It may not be able to do the procedure without risking nerve damage if the infection is severe and deep. For the vast majority of pets, this damage heals on its own. Fecal incontinence, or the inability to control bowel motions, with continual excrement flow from your dog’s anus, can occur in rare circumstances when the nerve damage is permanent.

General anesthesia is necessary, as with any operation, and there is always a chance of complications. These dangers are still being reduced by improvements in monitoring and anesthetic medications. The best way to treat dogs with chronic or recurrent anal sac infections or impaction is through surgical removal.

My dog is very nervous and sometimes seems to express his own glands. Is this normal?

Dogs frequently expel the contents of their anal sacs, especially when scared. Some dogs even seem to be unable to control the anus or anal sac ducts, allowing little amounts of fluid to leak out when they are resting and producing a disagreeable odor in the house. You could choose to have the anal sacs removed if your dog has this issue.

What other problems can develop with the anal sacs?

Adenocarinoma, a type of anal gland cancer, can develop in older dogs. As a result, it is crucial to have your dog examined by a veterinarian as soon as any of the clinical indications listed above are noticed.