One of the most common reason is your dog has a viral or bacterial infection and, as they try to fight this off, the lymph nodes can swell.Ī common cause of swelling or enlargement of the Submandibular lymph nodes, those just underneath the jaw, is Strep Throat, which is also a common condition in humans too. Swollen lymph nodes can be caused by a number of different things some of them include the following: Infections What Can Cause Your Dog’s Lymph Nodes to Swell? If not unchecked, it could affect your dog’s quality of life. Unfortunately, enlarged lymph nodes can also be a sign of cancer and the earlier that this is detected the better the long term prognosis could be. While enlarged lymph nodes are often not a sign of anything serious, it is very important that you consult with your vet as soon as you notice that they are different from normal. Why It Is Important to Seek Veterinary Advice Quickly? So if you suddenly notice a lump in any of the areas described above that you have not before then it could be an indication that your dog is trying to fight off some sort of infection or disease. When your dog’s lymph nodes enlarge this is referred to as Lymphadenopathy. The lymph nodes will react to the infection and can increase in size / become swollen as a result. When your dog has an infection or virus of some sort in their system the body can detect this and will try to fight it off. How Do I Know If There are Swollen Lymph Nodes? Two more lymph nodes are located in the groin are and in the armpits of the front legs. Those in the shoulder region, called the Prescapular.Those found above the knees on the rear legs, called the Popliteal.Those found in the groin area, called the Inguinal.There are also two found in the armpits at the top of the rib cage, called the Axillary.The most commonly visible ones are the two that are located beneath the jaw, just below the ears, the technical name is the Submandibular lymph nodes.There are 5 major sites on each side of your dog’s body where the lymph nodes are more easy to identify. There are a number of lymph node areas in your dog. Because of their high concentration of defender cells the lymph nodes can become inflamed if your dog is trying to fight off a virus or infection. The highest concentration of Lymphocytes is in the lymph nodes, these are small bean-shaped glands located in various parts of the body and they are linked through the lymphatic system. It also transports nutrients and oxygen to cells and helps to rid them of waste products. Lymph contains white blood cells called Lymphocytes and these contain T and B cells which are known as being defender cells. The lymphatic system circulates a clear fluid called lymph via a network of many tiny vessels towards the heart. A crucial part of this is the lymphatic system. Your dog’s immune system is designed to help them fight off illness or disease. What Are the Symptoms of Lymphoma in Dogs?.What Can Cause Your Dog’s Lymph Nodes to Swell?.Why It Is Important to Seek Veterinary Advice Quickly?.How Do I Know If There are Swollen Lymph Nodes?.
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