Ventricular pre-systole in a 10-year-old child may be a normal physiological manifestation if it is episodic, the patient has no special discomfort, and there is no organic change in the cardiac ultrasound, etc. If the patient is accompanied by palpitations and frequent episodes, then it is abnormal, and we should be vigilant for organic heart disease. 1. Normal situation: episodic ventricular pre-systole can be seen in normal people, 10-year-old children can also be seen, if the patient does not have palpitations, chest tightness and other discomforts, perfect 24-hour dynamic electrocardiogram for episodic, and cardiac ultrasound and other tests did not find cardiac structural changes and other heart disease, do not worry, it is normal, and regular review can be. 2. Abnormal situation: seen in organic heart disease, the patient has frequent ventricular preterm contraction in 24-hour ECG examination, at the same time there are palpitations, chest tightness and other discomforts, cardiac ultrasound examination can be found abnormal, or normal, need to further cardiac electrophysiology examination to clarify. Ventricular pre-systole in 10-year-old children should be analyzed in the context of clinical specifics, and it is recommended that family members actively consult a professional physician for diagnosis.