Recently, I saw a 4-year-old girl who came to me for a follow-up consultation after her recurrent cough improved in January with Chinese herbal medicine treatment. At first the family did not take it seriously, but this phenomenon has continued until now, in my continued questions the child’s mother told me that this situation can be controlled, when the family to stop it will not appear, the child’s parents once asked her why she wanted to do this, the little girl said that this is comfortable. Asked some details, such as whether the attack is the legs clenched, or have rubbed against each other, answered yes. Diagnosis: pediatric cross-leg rubbing syndrome; had also seen a case of a small 8-month-old baby girl with more pronounced symptoms. So the disease was immediately thought of. Pediatric cross-leg rubbing syndrome Pediatric cross-leg rubbing syndrome is a manifestation of pediatric behavior disorder, more common in girls, its etiology is unknown, may be related to neurological disorders , some people report some effect of treatment with flupazine and Antan, considered to be related to catecholamine metabolism disorders . The manifestation is more frequent in infants and young children, 1-3 years old is the high incidence, the attack is sober, the lower limbs are straight crossed or clamped, the hands clench fists or grab things, girls also like to sit on hard objects, hands pick up the legs or pick up the lower limbs, there are also things between the legs, boys are mostly shown to lie down on the art back and forth, the child’s penis has an erection during the attack, the urethral cavity edema, girls vaginal discharge increased, accompanied by redness, sweating, the perineum muscle contraction. Breathing is coarse and the perineal muscles are contracted, each time lasting several minutes or longer, and in severe cases continuously, and if the action is stopped in the middle the child often cries and is restored to its original state. A few patients can have pinworms, vulvovaginitis, the youngest age someone found 2 months old children, the largest can be 7-8 years old, the attack can be diverted, strengthen education and care, if necessary, available drugs, Chinese medicine conditioning, with the spleen and kidney drugs received a certain effect. What is “habitual leg rubbing”? “Habitual leg rubbing” is an abnormal psychological behavior that occurs in children, also known as “habitual perineal rubbing”, or “infantile self-masturbation” in foreign countries. It occurs mostly after the age of 2 years, more in girls than in boys. The cause of “habitual leg rubbing” may initially be due to local stimulation, such as vulvar eczema, inflammation, pinworm disease and too tight clothing and pants caused by local itching, the child has a certain experience with sexual overtones when rubbing the pubic area, later on this basis to form a habit, but also by chance to form a habit. It often occurs before going to bed, after waking up or when playing alone, and lasts for several minutes, or even secretly in order to avoid adult interference, mostly on the corner of the protruding furniture or riding on a stool or some object to move the body for rubbing, girls often cross their legs inward for leg rubbing action, when making rubbing action, cheeks flushed, eyes gazing, forehead slightly sweating, perineal discharge. It is easy to be mistaken for a seizure. When a child has this habit, the first thing to do is to eliminate local triggering factors, pay attention to perineal hygiene, treat local inflammatory infections, and expel pinworms, etc. However, because the child has formed the habit, seizures often do not stop and decrease after eliminating local factors, so attention should be paid to induction, but do not scold, humiliate, or punish. Older children with this habit are often discriminated against by their environment and have psychological abnormalities, so they should be properly persuaded and educated to remove their concerns and encouraged to overcome their bad habits actively and confidently. In addition, let the child feel tired at night before going to bed, get dressed and get up immediately after waking up in the morning to eliminate the conditions of this habitual action, don’t cover too much when sleeping, don’t wear tight pants in general, draw their attention to other aspects when you see them having an attack, and encourage them to participate in various game activities. The presence of this phenomenon does not have a negative impact on the development of the child, and most of the episodes stop when they grow older, and individual behavioral problems can occur.