Traumatic fracture of the larynx is rare in young children, but trauma can cause hoarseness. Foreign bodies ingested by young children can lodge in the larynx and cause hoarseness and difficulty breathing. Hoarseness after a choking episode should make parents and physicians very suspicious of what might be lurking around the larynx. Testosterone producing tumors in females can cause vocal fold thickening and a deepening voice. Miscellaneous causes Hearing loss can cause hoarseness based on the child's inability to modulate the voice with resultant vocal straining.
Psychological problems are a rare cause of pseudo-hoarseness.
These children lose the ability to speak, but can still whisper. These are all the causes of hoarseness it is reasonable to include. Perhaps this compendium will be helpful to someone. Hoarseness, especially a newly developed condition that does not seem to fit the usual pattern of hoarseness from a cold or croup or that lasts longer than expected, should be discussed with your child's physician.