There are many reasons for vaginal dryness: First, when the hormones in the body are abnormal, especially the presence of low estrogen, it may cause vaginal dryness. Second, when there is vaginal inflammation, the vagina will feel dry and painful during intercourse due to the stimulation of vaginal inflammation and edema of the local mucosa. If you have intercourse too early, it is more likely to cause vaginal dryness and pain if the vagina has not yet returned to normal after delivery. In this case, you can go to the hospital for a hormone test and, if necessary, a discharge test to rule out any problems in this area. Depending on the situation, it is also necessary to carry out relative relief and treatment to avoid the effects of sexual dysfunction.