Early symptoms of heart disease in babies include shortness of breath, recurrent respiratory infections, wasting, excessive sweating, edema and cyanosis. 1. Shortness of breath, recurrent respiratory infections: due to the increase in pulmonary blood flow, resulting in the baby’s effort to drink milk, choking, shortness of breath, frequent colds and recurrent respiratory infections. It can lead to poor physical condition of the baby, which is manifested by frequent sweating and emaciation. 2. edema, cyanosis: due to the reduction of pulmonary blood flow, the baby may appear cyanosis, manifested as lips and nails cyanosis, especially after crying or activity cyanosis aggravated, pestle-like fingers and toes. Babies with severe heart disease may have symptoms such as low urine output and double lower extremity edema. When the baby has the above symptoms, it is necessary to go to the hospital in time, under the guidance of professional doctors to carry out scientific treatment.