Four male dogs (three Mongrel and one Dalmatian breed) were presented in the Small Animal Clinics with transmissible venereal tumor (TVT) induced paraphimosis since 2 to 5 days. Affected dogs were middle aged (between 3 to 7 years). Fragile pink cauliflower growths were observed at the bulbus glandis of the penis. Impression smear examination helped to diagnose TVT. In all except one case protruded penis was successfully reposed in the prepucial cavity using lignocaine jelly. In one case, small incision on the prepuce was required to manage paraphimosis. All the cases were successfully treated for TVT using vincristine sulphate therapy.