About one year after the infection, a painful blister forms - 90% of the time on the lower leg - and one or more worms emerge accompanied by a burning sensation.
Epidural pain relief may also slow labor and may make the pushing stage longer and more difficult because women lose sensation in their lower body.
硬膜外阵痛可能使产程延长，第二产程进展困难，因为孕妇身体的下半部分失去了感觉。
3
Signs of low back tenderness (58.8%), abnormal pinprick sensation (58.0%), lumbar dysfunction (43.3%), and muscle weakness of the lower limbs (42.3%) were commonly observed.