September 13, 2025, 5:55 am | Read time: 4 minutes
Whether it’s a voice message, phone call, or presentation in a meeting, a clear voice is essential in everyday life. But what if the voice suddenly fails? Hoarseness is not only annoying but can also have serious effects on professional and personal life. Why the voice becomes hoarse, what helps, and when to seek medical help—here are the most important answers.
Why Does the Voice Become Hoarse?
For us to speak, air flows from the lungs through the larynx, where it meets the vocal cords. These open and close to produce sounds that are further shaped in the throat, mouth, and nasal cavity. If this process doesn’t work smoothly, hoarseness occurs.
“The voice works when the vocal cords are highly elastic and can completely close and open. If this is not the case, the voice becomes hoarse,” quotes the “dpa” Prof. Christopher Bohr from the Clinic and Polyclinic for Ear, Nose, and Throat Medicine at the University of Regensburg.
Common causes include inflammations that harden the vocal cords. Organic changes such as nodules, polyps, or cysts can also impair function. According to Bohr: “Anything that hinders the opening and closing of the vocal cords can lead to hoarseness.”
Colds, laryngitis, or vocal strain—such as speaking loudly in a noisy environment—can also cause problems. Other risk factors include reflux (rising stomach acid), smoking, regular alcohol consumption, and fine dust exposure.
What Helps with Hoarseness?
Moisture for the Vocal Cords
The most important measure: Keep the vocal cords moist. Lozenges with hyaluronic acid or salt that stimulate saliva flow and provide moisture to the cells are helpful. Inhalations with saline solution are also recommended.
Warm drinks like chamomile or sage tea also have a positive effect. Chamomile has anti-inflammatory properties, while sage moistens the mucous membranes.
Rest the Voice
It’s best to speak as little as possible when hoarse. If that’s not feasible, such as due to a professional appointment, a short, moderate “warm-up phase” can help prepare the voice gently for strain.
Avoid Clearing the Throat and Whispering
“Clearing the throat and whispering are of no use—on the contrary, they strain the already irritated vocal cords even more, because whispering requires a lot of pressure to form the voice,” warns Bohr. If you feel mucus, you should cough rather than clear your throat.
Prof. Antoniu-Oreste Gostian, chief physician of the Clinic for Ear, Nose, and Throat Medicine at the Straubing Clinic, also emphasizes: “When there is a feeling of mucus on the vocal cords, coughing is gentler than clearing the throat.”
It’s optimal to speak in a medium pitch and volume—this puts the least strain on the voice.
When is Medical Advice Necessary?
If hoarseness lasts longer than three to four weeks, the cause should be clarified by a doctor. It’s important to detect serious diseases like laryngeal cancer early. According to Bohr: “With early detection, laryngeal cancer is almost 100 percent curable today.” The point of contact in such cases is the ENT practice.
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How Can the Voice be Trained?
Targeted voice therapy can help improve the resilience of the voice. “If the voice is not sufficiently resilient for professional or private use, a thorough voice diagnosis is advisable,” says Gostian. Specialists in phoniatrics and speech therapists develop individual therapy plans together.
Simple exercises can also be supportive. Bohr recommends: “Hum a melody softly or try the Lax Vox method. In this, you hum through a straw into a glass filled with water.” This technique sounds unusual, but it has proven to be effective.
What Role Does the Psyche Play?
Physical causes aren’t always to blame—psychological stress can also lead to hoarseness. An extreme example is psychogenic aphonia, where those affected lose their voice partially or completely due to emotional stress, from hoarse whispering to complete silence.
Everyday emotions also influence the voice. Modern AI systems can already detect tension or excitement from the voice signal. Emotions like nervousness raise the pitch due to tension in the larynx, while calm voices sound deeper.
Another reason to pay attention not only to the voice but also to mental well-being.
With material from dpa