The lack of water in the vagina is usually due to nutritional deficiencies, gynecological inflammation and mental tension. It is important to pay attention to balanced nutrition and eat more nutritious vegetables and fruits, especially vitamin B and vitamin E foods, to prevent ovarian aging and to help secrete normal hormones and prevent vaginal dryness. Common gynecological inflammatory diseases, such as vaginitis, cervicitis and cervical erosion, lead to an increase in secretions, causing an acid-base imbalance in the vagina, which affects sexual life and makes the vagina dry. Being in a tense and stressful environment for a long time can lead to endocrine disorders in the body, no normal hormones to stimulate the sexual organs, sexual frigidity, and unfavorable fluid flow during intercourse.