Common causes of testicular lumps in dogs include:
- Testicular cancer: This is a malignant tumor that develops in the testicle. It's the most common type of testicular mass and can be locally invasive or spread to other parts of the body.
- Testicular torsion: This occurs when the testicle twists around its spermatic cord, cutting off its blood supply. It's a painful and urgent condition that requires emergency veterinary care.
- Epididymitis: This is an inflammation of the epididymis, a structure that transports sperm from the testicles to the vas deferens. Epididymitis can be caused by a bacterial infection or other underlying conditions.
- Hydrocele: A hydrocele is a collection of fluid around the testicle. It's usually not painful but can indicate an underlying medical issue.
- Inguinal hernia: This occurs when a portion of the intestine or abdominal fat protrudes into the scrotum. It can cause a visible lump and discomfort in the dog.
- Sperm granuloma: These are benign growths that develop in the epididymis. They are typically small and don't cause any problems.
It's important to take your dog to the veterinarian if you notice any changes in their testicles, including lumps, swelling, pain, or a change in size or firmness. The veterinarian will perform a physical examination and may recommend additional diagnostic tests, such as blood work or imaging studies, to determine the cause of the lump and provide appropriate treatment.
Remember, any unusual or sudden changes in your dog's health require prompt veterinary attention for an accurate diagnosis and proper treatment.