Testicular Swelling in Dogs
Epididymitis/Orchitis in Dogs
Epididymitis is inflammation of the testicular tube where sperm is stored, while orchitis is inflammation of the testes themselves. While the condition can be chronic, acute forms caused by direct trauma to the scrotum are more common. Epididymitis is commonly diagnosed in dogs, generally striking in the adult years; the average age of dogs affected with this condition is four years old. Breed does not indicate the probability of a dog being affected.
The condition or disease described in this medical article can affect both dogs and cats. If you would like to learn more about how this disease affects cats, please visit this page in the PetMD health library.
Symptoms and Types
The symptoms of epididymitis and orchitis can be localized in the area of the scrotum. These include:
Acute forms of this condition are most often caused by trauma to the scrotum. Epididymitis and orchitis can also be triggered by infectious organisms, as well as by other conditions, including viral causes (i.e., distemper), infections associated with inflammation of the prostate (prostatitis) and inflammation of the bladder (cystitis). Bite wounds on any area of the body can also lead to the development of epididymitis or orchitis.
Your veterinarian will perform a thorough physical examination on your dog, taking into account the background history of symptoms and any possible incidents that might have played a role in its onset. Other potential causes of the above mentioned symptoms include hernia of the scrotum, scrotal dermatitis, twisting of the spermatic cord, sperm-filled mass of inflamed tissue (granuloma), fluid-filled sacks on the spermatic cord (hydrocele), prostatitis, cystitis, and abnormal cell growth (neoplasia). Before treatment can begin, all of these condtions must first be ruled out.
White blood cell counts may be high in cases of infectious orchitis. If the root cause is prostatitis or cystitis, a urinalysis will likely reveal blood, pus, or excess proteins in the urine. Antibody testing should determine if an infectious organism is at the root of the problem. Ultrasounds of the prostate, testes, and epididymis may also be performed to rule out other causes.
If an open wound is present, it should be checked for bacterial infection. A bacterial culture may also be taken of the prostate, as well as of the fluid in the testes. Semen should also be collected and tested.
Treatment and Care
Treatment depends on whether or not your dog is used for breeding. If it is, and the problem only affects one side of the testes (unilateral), partial castration may be an option. However, if the condition affects both sides, or if your dog is not intended for breeding, full castration is generally recommended.
In addition to this, your dog should be treated with antibiotics for at least three weeks. However, antibiotic treatment alone will not always lead to improvement.
Living and Management
The condition itself, or castration (even if unilateral), can result in permanent infertility. Your dog's semen should be checked for viability three months after the treatment.
Prompt treatment of wounds and preventing infections are the best weapons against epididymitis and orchitis. It is also best to keep your dog in good health, while visiting your veterinarian regularly for progress checks.
The sex cell of male animals; created in the testicles
The white fluid produced by males in the testicles for reproduction
The tissue that holds up the testicles and contains the vas deferens, nerves, and muscles of the male reproductive organs.
A condition of having only one side
An in-depth examination of the properties of urine; used to determine the presence or absence of illness
The sac that holds the testes; may also be referred to as the scrotal sac
An inflammation of the prostate gland
The condition of having a part of a body part protruding through the tissue that would normally cover it
A condition in which the skin becomes inflamed
The condition of being drowsy, listless, or weak
A condition in which the testes become inflamed
Term used to imply that a situation or condition is more severe than usual; also used to refer to a disease having run a short course or come on suddenly.
A product made of fluid, cell waste, and cells
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