What is the reaction of the vagina during sexual activity? Does the vagina contract during sexual activity

The expansion and lubrication of the vagina also provide direct physiological indications for women's obvious psychological invitations to socialize. The response of the vagina to positive and effective sexual stimulation is to prepare for the insertion of the penis in an involuntary manner.

When evaluating the vagina as a sexual organ, it is necessary to focus on the changes in the vagina during the sexual response cycle.

The evidence for the first physiological response of women when sexual tension begins to increase after receiving any form of sexual stimulation is the wetting of the vaginal wall, which usually occurs within 10 to 30 seconds. It is worth noting that both the "castration" patients after the removal of the uterus and bilateral ovarian fallopian tubes, and the patients undergoing the artificial vaginoplasty, all have the secretion activity caused by this Libido, which completely excludes the possibility that the secretion is from the cervix or Bartholin's gland. Secretion can have a certain impact on vaginal acidity, which is related to the amount and duration of secretion. After prolonged sexual activity, the pH value increases.

In the process of Sexual arousal, in the structure of the entire vaginal tube, the leakage droplets scattered from the surface of the folds are like sweat beads on the forehead. After increasing sexual tension, isolated droplets gradually fuse on the vaginal wall to form a uniform and shiny covering, allowing the vaginal wall to achieve complete and sufficient wetting. In this way, women in a sexually responsive state reach a fully prepared stage shortly after entering the excitement phase. The rapid emergence of abundant exudate like substances in the vaginal wall is caused by the significant expansion of the venous plexus that surrounds the entire vaginal canal. All the surrounding vascular bundles are clearly involved in this explosive vascular congestion reaction of the vaginal wall.

Long term research has confirmed that there are basically no granular substances on the vaginal wall, and the biochemical components of these exudates and their chemical effects on the normal vagina are being studied. The longer the pre intimate process is prolonged, the longer the intercourse time before ejaculation lasts, and the more vaginal secretions are produced. After reaching the arousal period, prolonged sexual stimulation is always a fixed factor affecting vaginal lubrication, regardless of the type of stimulation used (physical or psychological), and also regardless of whether a woman is able to achieve orgasmic release of sexual response in the end.

During the excitement period of continuous development of sexual tension, anatomical and physiological evidence can be seen that the vagina is ready for sexual intercourse: the elongation and expansion of 2/3 of the vaginal canal. At the end of the excitement period and the approaching plateau period, irregular dilation of the vaginal wall can be observed, with significant and irregular dilation of the vaginal canal followed by irregular relaxation. At this point, the tension of the vaginal wall seems to have disappeared, and women in a sexually responsive state experience clinically verifiable dilation of 2/3 of the vaginal canal. The practical significance is self-evident. When sexual tension increases, the cervix and uterine body slowly rise and enter the false pelvis upwards and backwards, creating a tent effect in the cervical cross-section of the vagina.