Voice changes, also known as hoarseness, occur when the sound of a person's voice becomes different from normal. The voice may sound rough, weak, breathy, or strained. This condition often results from problems affecting the vocal cords or throat. Temporary voice changes may occur due to infections, excessive voice use, or irritation, while persistent voice problems may indicate an underlying medical condition. Early evaluation by an ENT specialist can help identify the cause and ensure proper treatment.