The 7-month-old baby with hoarse voice is commonly seen in the following situations: 1. Acute laryngitis is the most common, hoarse voice appears suddenly, can be accompanied by barking cough, sometimes accompanied by fever, serious inspiratory respiratory distress can occur, caused by acute laryngitis, serious laryngeal edema, and even suffocation life-threatening, such as the above performance when you need to go to the hospital for hormonal drug nebulization in order to play a fast 2, caused by a transient swelling of the vocal cords after violent crying, the hoarseness will disappear quickly after comfort and rest, and the baby’s general condition is good.