Some women’s waist belongs to the sensitive area, after being touched will produce sexual arousal is a very normal physiological reaction. Men’s waist also belongs to the sensitive area. Each person’s nerve sensitivity is different, the sensitive area is also different. Touching the waist will stimulate the relevant reflex nerves, transmitted to the brain center will be manifested as sexual arousal, the corresponding physiological response, such as increased vaginal secretion, skin redness, clitoral erection and other manifestations. Sexual desire is a normal psychological and physiological phenomenon that everyone has, therefore, there is no need to worry too much about the situation of stroking the waist, not to mention the need to produce a sense of guilt. However, if it is too sensitive to the extent that it affects normal life, you can go to the hospital to check the cause to exclude the possibility of disease.