After masturbation will feel the symptoms of the vagina jump a jump is normal, is the performance of the pubic pleasure over-excitement. After masturbation, women will not immediately get out of the state of sexual excitement, this pleasure will last for a short period of time, over-excitement will lead to changes in the vaginal wall, due to the vaginal nerves are more sensitive, and its stimulation produces spasms that can be felt in the vagina twitching. Therefore, there is no need to be too nervous, the body muscles gradually relax after this phenomenon will disappear. Just pay attention to the number of times and frequency of masturbation can be, at the same time, masturbation should pay attention to hygiene, to keep the perineum clean, to avoid infection, and develop a good habit of life and work.