Dogs with benign prostatic hyperplasia have been found to have increased relaxin levels and suspected subsequent weakening of the pelvic diaphragm. In cats, perineal hernias are seen most commonly following perineal urethrostomy surgery or secondary to megacolon.
Research has shown that dogs with benign prostatic hyperplasia exhibit elevated relaxin levels, which may lead to weakened pelvic floor muscles. Likewise, in cats, perineal hernias frequently develop after surgery or secondary to digestive problems.