Ultrasound leads to nervous retardation and better post-operative sting choices.

Ultrasound leads to nervous retardation and better post-operative sting choices. The ultrasound-directed neurotic retardation is associated with the patient ‘ s self-controlled pain, which provides better post-operative pain relief, reduces side effects such as vomiting, and facilitates the patient ‘ s faster recovery. Cesarean section, neurological damage to the arms.