Some parents have noticed this behavior in their children: at bedtime or after waking up, the child’s legs are clenched inward, rubbing the legs, making fists with both hands, staring into the eyes, flushed cheeks, sweating on the forehead, and holding their breath for about a minute to a few minutes at a time. What is wrong with the child? This often causes parents to worry, is it epilepsy? Or other serious illness? Will it affect the child’s growth and development? Is this problem serious? The medical term for this habitual action, which is mainly characterized by leg-clamping and constant rubbing of the perineum, is called affective cross leg rubbing syndrome, also known as child leg rubbing syndrome, pediatric leg-clamping syndrome, and child masturbation (Masturbation). Episodes usually occur between the ages of 1 and 5 years, and can appear as early as a few months old as a baby, are most common in toddlers between the ages of 2 and 3 years, and are less common after the age of 10 years, and are more common in girls than in boys. These children are of normal intelligence. Most of them have episodes of birth before bedtime, after waking up, conscious, showing that the legs are flexed, or close together tightly or cross inwardly, and then the legs do a small range of friction or strong immobilization. Individual girls also like to sit on a chair or use the lower abdomen against a hard object, repeatedly rubbing up and down to squeeze the vulva, and accompanied by flushed cheeks, sweating all over the body, the phenomenon of two straight eyes. Girls have episodes of vulvar congestion, increased secretions or increased labial pigmentation; boys have erect penises, slightly engorged urethral orifices, and mild edema. This behavior can be stopped when attention is distracted. “Clamping is a generalized pressure on the external genitalia, but unlike masturbation, which is usually more limited to the external genitalia and vaginal area after puberty, the younger the child, the more generalized the “clamping” becomes. Generally, this habit of leg-holding disappears at a certain age or is replaced by other behaviors. Many parents think it’s a shameful thing to do and tend to keep it to themselves. In fact, “clip legs” this behavior and chewing nails and other behaviors have similar places, are to shift attention to the body to relieve boredom or tension, is a behavioral disorder in the process of growth, do not have to be overly nervous. In the case of children, masturbation means self-soothing and is a different thing from sexual masturbation in adults. Children can receive sexual information or stimulation from the outside world, but they cannot understand and realize it deep inside. According to Freud, the areas that are sexually sensitive or in a prominent position in young children shift as they grow older, and infants and toddlers of different ages have their different primary erogenous zones. There are five different stages of human psychosexual development that is personality development: 1, oral period (0-1 years old), pleasure mainly from the mouth. 2, anal period (1-3 years), pleasure comes from the excretion or retention of feces. 3.Sexual bud stage (3-6 years old), children not only become interested in their own sexual organs and masturbate, but also their behavior begins to have a gender. 4.The latency period (6-12 years old) focuses on learning and exploring the world, and sexual interest is replaced by other interests. 5.Reproductive period (after 12 years old) focuses on reproductive functions and re-experiences the pleasure of sexual organs. According to Freud, the sexual bud stage is a stage in human growth that children in this stage explore their sexual organs. Freud believed that this is a manifestation of internal drive, through which the child obtains the fulfillment of forcefulness. In addition, the behaviorist school believed that episodic factors such as perineal eczema, pinworms, wet diapers, or the stimulation of pants that were too tight caused the child’s sexual organs to become so pleasurable that he or she would voluntarily masturbate and seek pleasure, even after the illness had healed. They, believe that this undesirable behavior is the result of acquired learning. Now there are also scholars who believe that if children are in a monotonous and stereotyped environment for a long time, their activities are restricted, or they are forced to play in bed, then the children’s activities are restricted, which also triggers the children’s behavior of active masturbation and seeking sexual pleasure. The diagnosis of this disease should exclude friction movements triggered by conditions such as eczema of the perineum, pinworms, wet diapers or tight pants, because these conditions cause a lot of discomfort to the child and can trigger behaviors similar to those described above, but the friction behaviors of the child will disappear automatically when the disease is treated or when the discomfort is removed. However, if treatment is not timely, the child develops a habit of rubbing. It is also important to distinguish this behavior from epileptic seizures, in which the child has impaired consciousness, and emotional cross-legged rubbing syndrome, in which the child is lucid. Treatment Organic diseases should be ruled out first, and then psychological behavioral interventions: 1, parents should be treated calmly, do not be nervous, and amicably persuade, to do as much as possible to be diluted, do not reprimand, scolding, do not pay excessive attention to, otherwise, but will strengthen this behavior, so that it is fixed, leading to the problem carried into puberty, the friction fetish may be formed, affecting the normal sex life. 2, parents should give children more emotional warmth, more contact with the child, to avoid letting the child in a lonely, boredom, cultivate children’s broad interests, more guidance for outdoor activities, cultivate interest in the outside world to divert attention. 3, before going to bed, tell children a story, or do a small game, until it makes them sleepy to fall asleep. Get up immediately after waking up and avoid staying in bed for too long. If the rubbing behavior is triggered by irritation such as perineal eczema, pinworms, wet diapers, or pants that are too tight, it is triggered by a physical illness, and when the physical illness disappears, the behavior will also disappear. At the same time, attention should be paid to children’s perineal cleanliness, in addition to daily washing, infants and young children should also use diapers or diapers during the daytime play, as early as possible to wear sealing pants to protect the perineal skin, to avoid infection. In order to prevent the occurrence of this disease, parents should pay attention to the following aspects: 1, strengthen the management of children’s perineum, pay attention to genital hygiene, often rinse with water, keep clean. 2. Pay attention to the posture and position of the child when he/she goes to sleep, and change the posture and position that is conducive to the occurrence of abnormal behavior. 3, pay attention to the child to fall asleep when wearing clothes not too much too tight. Don’t let adults touch the child’s genitals too often. 5, pay attention to stop the child to play with their genitals. 6, if the child has pinworms, eczema, etc., should promptly ask the doctor for treatment.