What is the reason for the multiple lymph node enlargement around the umbilicus?

1, the immune system abnormal lymph nodes belong to the immune system components, so when the immune system abnormal, easy to cause stimulation of lymph nodes, may lead to multiple lymph nodes enlarged, that is, periumbilical mesenteric lymph nodes enlarged, such as autoimmune diseases, lymphoid tissue proliferative diseases. 2, inflammatory reaction One of the common reasons for periumbilical mesenteric lymph node enlargement is inflammation. When intestinal or abdominal organs are infected, inflammation or other stimulation, lymph nodes help clear pathogens or abnormal cells, so there will be periumbilical mesenteric lymph node enlargement phenomenon. 3, tumor metastasis If patients with gastric cancer, colorectal cancer and other diseases, tumor cells easily spread through the lymphatic system to periumbilical mesenteric region, resulting in lymph node enlargement, periumbilical mesenteric lymph node enlargement.