Experiments were done with male rabbits (2.5-3.0Kg).The postganglionicfibers from bilataral pelvica ganglia to the bladder were excised partially andresulted in reversible retention urine.The pressure-volume curve of bladder andvolume of residual urine was measured at the third day

sixth day

thirteenthday

twentieth day and twenty-seventh day after the operation of denervationand compared with preoperation respectively.The rabbits were divided into twogroups at random

In electroacupuncture group

immediately after the operationof denervation

the intradermal needles were implanted in derma of bilateral“Subcortex” auriculopoint.Before each measurement electroacupuncture at thesepoints and bilateral “Shenshu” (somatic point) was given for 10 minutes.Incontrol group

the operation of denervation was undergone as well but did notbe implanted the needle and given electroacupuncture.The results showed that

before the operation a smooth or slowly uniform rising wave appeared on thepressure-volume curve of bladder and only a peak repeated on this backgroundat an instant every injecting water.But after the operation

due to losing ofcontrol of parasympathetic nerve partially the pressure-volume curve of bladderappeared ascending step wave evidently after every injecting water.The bladdervolume and the residual urine increased evidently.The differences between beforeand after the operation were statistically significant (P<0.05).It showed that

after denervating partially the adaptation of the rabbits' bladder was decreased.But on the third day and the sixth day after operation the residual urine decre-ased more evident in electroacupuncture group than in control group (P<0.05).The extent of change of pressure-volume curve was lesser

the recovery of thebladder volume and the urination pressure was faster than that of control group.It showed the regulation function of electroacupuncture.