Dr.k.r choudhary on Instagram: "Transmissible Venereal Tumor (TVT) in Female Dogs (Also called Sticker’s sarcoma or canine transmissible venereal tumor) ⸻ ✅ Definition: TVT is a contagious tumor that affects the external genitalia of dogs. It is one of the very few transmissible cancers in animals and is spread through direct contact, usually during mating. ⸻ 🔍 Cause: • Caused by the transfer of living cancerous cells from one dog to another. • Transmission occurs during coitus, licking, or sni