You can eat crabs for lymph node inflammation, but not too much. Inflammation of lymph nodes is simply called lymphadenitis in clinical practice and is mostly caused by bacterial or viral infections. It is usually seen in infections of the mouth, throat or upper respiratory tract, or bacterial or viral infections of the rectum or perineum. Crab mainly contains high cholesterol content in the crab yolk. For patients after bacterial or viral infection, clinical diet usually advocates low-fat, high-protein, and avoids eating too much spicy, greasy and stimulating food, so the main content or composition of crab is high cholesterol and high-protein food, which will not lead to aggravation of symptoms of lymph node inflammation, therefore, patients suffering from lymph node inflammation can eat a small amount of crabs, but cannot eat more. So patients suffering from lymphadenitis can eat crabs in small quantities, but not too much.