Why does your turkey sausage have veins?

Turkey sausage may have veins due to the presence of connective tissue and blood vessels in the meat. During the processing of the sausage, these components may not be completely removed, leading to visible veins. Additionally, the grinding and mixing process can cause the meat and fat to clump together, making these veins more noticeable. Ultimately, this is a natural aspect of meat products and doesn't affect the quality or safety of the sausage.