Orchitis is inflammation of the testes, while epididymitis is inflammation of the testicular tube where sperm is stored. While the condition can be chronic, acute forms caused by direct trauma to the scrotum are most common. This condition is rare, but not unheard of in cats.
The symptoms of epididymitis and orchitis can be localized in the area of the scrotum. These include:
Acute forms of the 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 epididymitis or orchitis.
Your veterinarian will perform a thorough physical exam on your pet, taking into account the background history of symptoms and possible incidents that might have precipitated this condition. Other potential causes of the above mentioned symptoms must be ruled out before your veterinarian can make a definitive diagnosis. The method of differential diagnosis may be used to eliminate the most likely underlying issues that would lead to this reproductive disorder. Some of the conditions 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).
White blood cell counts may be high in cases of infectious orchitis. If the root cause is prostatitis or cystitis, a urinalysis is likely to reveal blood, pus, or excess proteins. 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 depends on whether or not your cat is used for breeding. If it is, and the problem only affects one side (unilateral), partial castration may be an option. However, if the condition affects both sides, or if your cat is not utilized for breeding, full castration is generally performed.
Your cat should be treated with antibiotics for at least three weeks, however, antibiotic treatment alone will not always lead to improvement.
The condition itself, or castration (even if unilateral), can result in permanent infertility. Your cat's semen should be checked for viability again at three months after treatment.
Prompt treatment of wounds, and prevention of infections are the best weapons against epididymitis and orchitis. It is also best to keep your cat in good health, and to uphold a regular visitation schedule with your veterinarian.
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