Nutcracker syndrome can be seen in all age groups, commonly in long and lean individuals Nutcracker syndrome is not equal to left renal vein compression syndrome, but also rare in right renal vein Nutcracker syndrome is divided into anterior nutcracker syndrome (common) and posterior nutcracker syndrome (belongs to the left renal vein anatomical location variation) Anterior nutcracker syndrome mainly refers to the left renal vein located between the abdominal aorta and superior mesenteric artery after compression of the vein The posterior nutcracker syndrome refers to the compression of the left renal vein between the abdominal aorta and the spinal column, which causes symptoms. Men may have varicocele (left spermatic vein flowing back through the left renal vein), either alone or with glomerulonephritis. Self-healing, at least 2 years of observation without medication, 75% of children can recover Severe proteinuria can be considered with ACEI drugs Indications for surgical intervention suggested by some scholars: recurrent carnituria with anemia, severe back pain, renal involvement, persistent postural proteinuria, ineffective conservative treatment can be considered, surgical treatment includes both interventional and surgical treatment.