Ticks are skin parasites; they live on the skin and eat the blood of their hosts. They can consume enough blood to make a host anemic.
Tick paralysis, or tick toxicity, is a quick acting, progressive disease that can cause extreme harm to a dog (and humans).
Taurine deficiency is a lack of taurine, an important amino acid, in the blood and body. Taurine is not an essential amino acid for dogs, meaning dogs manufacture taurine themselves as long as they eat enough of the necessary building blocks.
Septicemia, sepsis, septic shock, and septic inflammatory response syndrome (SIRS) are potentially life threatening related conditions that occur during severe infections. Septicemia specifically refers to bacteria, or their toxins, in the bloodstream.
A tumor is a proliferation of cells resulting in uncontrolled tissue growth. Primary eye tumors originate from within the eye, and secondary tumors spread to the eye from somewhere else in the body. Retroviruses, UV exposure, and genetics can predispose a dog to eye tumors.
Testicular cancers arise from uncontrolled production of testicular cells and are the most common type of genital tumor in dogs. They are the second most common type of tumor affecting intact males overall.
Tracheal collapse (TC) in dogs is a progressive condition affecting the trachea (windpipe). The trachea is held open by cartilage rings and TC describes weakening of the cartilage which results in narrowing of the windpipe, leading to obstruction of the upper airway.
Tapeworms or *Cestoda*are a class of flat intestinal parasites commonly found in dogs. Dipylidium caninum is the most common species of tapeworm found in dogs and transmission occurs as a result of ingesting infected fleas.
Toxoplasmosis is a parasitic infection that can affect dogs and other mammals, including humans. It is caused by the protozoan parasite Toxoplasma gondii. The parasite can be found in raw meat, contaminated soil, and cat feces.
Transmissible venereal tumors (TVT) are an unusual form of tumor which can be transmitted through skin-to-skin contact between dogs. The exact source of this cell line is unknown, but is thought be thousands of years old.
Thymoma in dogs is a rare cancerous tumor of the thymus, a glandular organ located in the upper chest. The cause of thymoma is unknown. Thymoma can be classified as invasive or non-invasive.
Thoracic space disease (TSD) is the accumulation of air, or fluid such as blood, pus, extracellular fluid, or fluid from lymphatic system in the chest cavity impairing heart and lung function. TSD is a moderately common but severe condition in dogs affecting the chest cavity that contains the heart and lungs
Toad venom toxicosis (bufotoxicosis) in dogs is poisoning that occurs through contact with certain species of toads of the *Bufonidae* family.