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What is Testicular Swelling?

This painful inflammation can make urination and defecation very difficult for the cat. Testicular swelling may occur as a one-time response due to trauma to the prostate or testicles, or it may become a chronic issue. This is more common in older males as their hormones begin to shift and testosterone slowly decreases. Blockages or infections caused by waste buildup in the seminal ducts can lead to prostatitis. Veterinary attention is necessary, as infection can spread throughout the body. It is also humane to reduce the extreme pain that can accompany testicular swelling.

When a cat’s immune system reacts to an injury or ailment affecting the scrotal area, the prostate gland can become stressed, leading to fluid retention in the testicles. This often results in one or both testicles swelling to an abnormally large size, and can be very painful for the cat. This occurrence is sometimes referred to as prostatitis. This issue only arises in intact males possessing both a prostate and testicles. 

Testicular Swelling Average Cost

From 565 quotes ranging from $200 - $1,000

Average Cost

$650

Symptoms of Testicular Swelling in Cats

Symptoms are often outwardly visible and may be accompanied by further internal issues. The more symptoms that are present, the more pain that the cat is possibly experiencing. Rectifying the issue in a prompt manner is required. Symptoms to watch for include:

  • Visibly larger testicles
  • Pain in the genital area
  • Lethargy
  • Fever
  • Swollen lymph nodes
  • Loss of appetite
  • Excessive scrotal licking
  • Open wound on or around the testicles
  • Difficulty moving
  • Infertility
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Causes of Testicular Swelling in Cats

While testicular swelling can be temporary, many conditions that cause it will not dissipate on their own. Causes are generally local to the scrotal area. Known causes include:

  • Abscess from a bite or other traumatic wound
  • Bacterial infection
  • Viral infection (such as feline leukemia virus or feline immunodeficiency virus)
  • Cysts
  • Cancer
  • Hormonal issues (such as estrogen exposure)
  • Allergic reaction (often from fleas)
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Diagnosis of Testicular Swelling in Cats

At your veterinary appointment, bring your cat’s full medical history as the veterinarian will need it to assess possible problems in the cat. A full physical examination will be performed including an extensive rectal exam. The vet will have to differentiate between possible conditions by matching symptoms present in the cat to possible health issues. The goal is to identify the exact cause of the swelling to prepare a proper treatment plan. 

Urinalysis can shed light on prostatitis if blood, pus, or excess protein is found in the urine. A microscopic urine culture can help identify bacteria if infection is present. Blood work including a complete blood count and a biochemical profile may be useful in identifying possible cases of cancer. X-rays and ultrasounds can confirm and locate tumors or growths in the testicular area. A biopsy of swollen tissue may be collected for a histopathological examination. Antibody testing can be used to discover the presence of infectious organisms.

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Treatment of Testicular Swelling in Cats

Appropriate treatment will depend on the cause of swelling. Certain issues are more dangerous to the cat than others. Early detection of testicular swelling can make treatment more effective.

Antibiotics 

If the cause of the swelling is an open wound, antibiotics can rid the area of bacterial infection. If a general bacterial infection is afflicting the entire scrotum, antibiotics are not always effective, especially if the issue has become chronic. If surgery is required, antibiotics are often prescribed after to prevent infection from developing in the wound site. Prescriptions generally range from on to four weeks’ duration.

Full or Partial Neuter

With many cases of prostatitis, the only permanent solution for testicular swelling and pain is castration. If the testes are diseased, the surgery can become more complicated. Larger incisions may be needed and in some cases the testicles may have fused to skin tissue. General anesthesia is required to perform the surgery.

Surgical Removal

If a tumor is deemed to be the cause of testicular swelling, surgical removal of the tumor may allow the testicles to remain. This depends on the location, number, and malignancy of tumors present. 

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Recovery of Testicular Swelling in Cats

While your cat is suffering from prostatitis, ensure it is urinating and defecating regularly. Provide fresh water to the cat to encourage frequent drinking. Feed your cat a high quality, species-appropriate diet free of fillers and chemicals. Your vet may recommend supplements that boost the strength of the immune system to your cat’s diet. Limit play and exercise, as this can exacerbate the swelling. 

If the cat has undergone surgery, at home-care will be required. Ensure the cat does not lick or bite its incision site. An Elizabethan collar may be necessary to achieve this. Monitor the incision for any signs of infection. 

The prognosis for cats who have testicular swelling is overall very good, provided they survive castration and do not have a virus such as feline leukemia virus or feline immunodeficiency virus. These viruses are permanent and generally untreatable. Keeping your cat indoors may be the best way to prevent wounds from cat fights or exposure to viral infections. 

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Testicular Swelling Average Cost

From 565 quotes ranging from $200 - $1,000

Average Cost

$650

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Testicular Swelling Questions and Advice from Veterinary Professionals

Need pet health advice? Ask a vet

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Ask a Vet

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Street cat adopted

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2years

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Unknown severity

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0 found helpful

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Unknown severity

Has Symptoms

Pain In Testicular Region And Back Legs

My cat fought with another cat and got hurt in his testicle

Sept. 25, 2020

Owner

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Dr. Michele K. DVM

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0 Recommendations

Thank you for your question. I apologize for the delay, this venue is not set up for urgent emails. I hope that your pet is okay. If they are still having any problems, It would be best to have your pet seen by a veterinarian, as they can examine them, see what might be going on, and get any testing or treatment taken care of that might be needed.

Oct. 20, 2020

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Tuxedo

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2-3

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Unknown severity

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0 found helpful

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Unknown severity

Has Symptoms

Seems To Hide Even When I Shake His Bag Of Treats I Hav 2 Other Cats So I’M Not Sre If It’S Him But I Have Cleaned Up Vomit 3 Times In 2 Days. Testicals Seem Big And Hard And Wet

I found this cat 2 weeks ago outside of my work after feeding him for a couple days he became very lovable and would follow me when I left the parking lot. After a week or so I grabbed him and put him in the car. He has been here for 2 weeks. I took him to the wellness clinic provided by poi dogs and papokie at pet smart they said he seems healthy and he was roughly 2or 3 I had him micro chipped and had revolution treatment applied 4 days later I notice he is not acting the way he was went I brought him home. I haven’t been around him long enough yo know his demeanor but something is wrong

July 24, 2020

Owner

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Dr. Michele K. DVM

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0 Recommendations

Thank you for your question. Stray cats can be affected commonly by viral diseases or infections. If he does not seem to be himself and is not as responsive as he was when you first got him, it may be worth a second check up for him with a veterinarian. They will be able to take his temperature, assess his General Health, and see what might be going on. That was nice of you to take him in, and I hope everything goes well for him!

July 24, 2020

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Cheddar

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Orange tabby

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1 Year

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Moderate severity

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0 found helpful

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Moderate severity

Has Symptoms

Redness
Swelling
Red Bumps
Neutered

My cat was just spayed and neutered about a week ago. He seemed fine but today he has a large lump between where his testicles were. The lump has a vertical line, which is where, I’m asuming, he was cut during the procedure. He doesn’t seem to be bleeding but he does seem to be a little in pain since he shakes his tail a little bit when moving sometimes. Other than that, he’s behaving fine.

Aug. 27, 2018

Cheddar's Owner

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0 Recommendations

Some pain and swelling may occur after castration, incision wounds are usually so small that stitches or glue are not required in routine castrations of male cats; if there is a lot of swelling or Cheddar is exhibiting a lot of pain you should return to your Veterinarian to be on the safe side. Regards Dr Callum Turner DVM

Aug. 27, 2018

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Cuddles

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tabby

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1 Year

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Moderate severity

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1 found helpful

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Moderate severity

Has Symptoms

Licking At Genitals

My cat keeps licking his rectum, has dihorrea,his fur is not shining,his balls seems hard and large,his his bottom eyelids are showing.He seems to be eating and drinking ok, but he doesn't seem to want to sit on his bottom. I've treated him for worms, but not fleas

Aug. 17, 2018

Cuddles' Owner

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1 Recommendations

There are various issues which may be causing testicular swelling, but it may be due to irritation of the scrotum from diarrhoea or excessive licking the area area because of the diarrhoea; you should ensure that Cuddles is treated for worms, fleas etc… and is being fed an appropriate diet for age and breed, also place a cone on Cuddles to prevent any further licking and bathe the area around the anus and scrotum to remove any irritants. A visit to your Veterinarian would be useful to determine a cause for the diarrhoea. Regards Dr Callum Turner DVM

Aug. 17, 2018

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Brolek

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Tuxedo

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13 Months

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Fair severity

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1 found helpful

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Fair severity

Has Symptoms

Hair Loss
Scab
Testicular Licking

My cat lately has been licking/biting his testicles I just noticed he has hair loss in that area and small scabs, this has been going on for a couple of weeks. I don't notice any swelling, he is also big on grooming himself constantly. His eating is good, drinking lots of water. Haven't noticed any blood in urine. I haven't tried any creams or ointments.

July 8, 2018

Brolek's Owner

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1 Recommendations

You should try to place a cone on Brolek and bathe the scrotum twice per day with a dilute antiseptic, you may also place a dab of Neosporin on the scrotum as well to be on the safe side; see how he goes over the next week but if there is no improvement visit your Veterinarian. Regards Dr Callum Turner DVM

July 8, 2018

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Oreo

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Unknown

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1 Year

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Serious severity

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0 found helpful

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Serious severity

Has Symptoms

Loss Of Appetite

Hi I have an outside cat named Oreo but recently I've noticed that his testicals are swelled up and he cant move his tail. I really want him to feel better but I can't take him to a vet due to my young age. Is there anything I could do myself to help him

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Clowny

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Puspin

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1 Year

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Serious severity

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1 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Serious severity

Has Symptoms

Fever And Swelling Of Testicles

My cat was neutered 2 weeks ago. Last week he had a fever and his balls are enlarged. I checked his balls again and he has a wound below his belly. What should I do first before taking my cat to the vet?

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bones

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Cat

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2 Years

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Moderate severity

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1 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Moderate severity

Has Symptoms

Swelling

I adopted a stray cat. His name is Bones. He got neutered exactly a week ago. His balls are swollen...how long should it take for them to go down? should I take him in to the vet?

Testicular Swelling Average Cost

From 565 quotes ranging from $200 - $1,000

Average Cost

$650

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