When lymphatic blockage occurs, it will lead to lymphatic reflux obstruction, and lymph will not circulate normally into the veins, resulting in local edema and serious infection, which may lead to life-threatening infection. When lymphatic blockage occurs in the neck, it will easily lead to local edema and secondary infection, and the local infection will easily cover up the primary condition, for example, the tumor in the neck may be covered up by the infection, thus leading to misdiagnosis. When lymphatic blockage occurs in the extremities, it may lead to swelling of the extremities, such as the symptoms of rubbery legs, which seriously affects the appearance and daily life, and may lead to repeated infections and fistula formation, and may lead to sepsis, which may affect life.