Testicular Tumors Can Cause Hair Loss

Testicular tumors in old un-neutered male dogs can cause some problems. They are most commonly found in undescended testicles that have remained in the abdomen or in the inguinal canal. This little guy (who is ancient, a rescue kid) came with a sparse hair coat and one very large testicle. The hormones being produced by the large testicle with the tumor caused the second testicle to shrink. The hormones are also responsible for hair loss and weak hair coat. Castration should be curative. These tumors rarely spread to other parts of the body. Once the tumor is removed, the excess hormone production is gone. Hopefully, this little guy will grow more hair and have a glossy coat in a few months!