Why Does It Hurt to Swallow? Common Causes and What to Do

Painful swallowing, medically termed odynophagia, is a common and often uncomfortable experience. While frequently a temporary symptom of minor issues, it can also signal more significant underlying health conditions.

Common Reasons for Painful Swallowing

Many instances of painful swallowing stem from infections, both viral and bacterial. Viral infections, such as the common cold, flu, or viral pharyngitis, often cause a scratchy or burning sensation in the throat. These infections lead to inflammation of the throat lining and may be accompanied by symptoms like a cough, runny nose, or fatigue.

Bacterial infections, like strep throat (streptococcal pharyngitis) or tonsillitis, are common causes of odynophagia. Strep throat, caused by Streptococcus pyogenes bacteria, can present with a sudden, severe sore throat and red, swollen tonsils that might have white patches or streaks of pus. Tonsillitis, an inflammation of the tonsils, shares similar symptoms, including severe sore throat, and can be caused by various bacteria or viruses.

Allergies can also contribute to painful swallowing, primarily through post-nasal drip. When allergens trigger an immune response, excess mucus is produced, which can drip down the back of the throat, causing irritation and soreness. This constant drainage can lead to a persistent need to clear the throat.

Beyond infections and allergies, dryness or irritation of the throat can cause pain when swallowing. Dehydration, breathing through the mouth, or exposure to environmental irritants like smoke or pollution can lead to a dry, scratchy throat. Minor trauma, such as scratching the throat with sharp food items like chips or crackers, can also result in localized pain.

Other Conditions Causing Swallowing Discomfort

Gastroesophageal Reflux Disease (GERD), or acid reflux, is a condition that can cause painful swallowing. In GERD, stomach acid flows back into the esophagus, irritating and inflaming its lining. This irritation can lead to a burning sensation and pain, and may also cause a feeling of food being stuck in the throat.

Inflammation of the esophagus, known as esophagitis, can cause painful swallowing. Esophagitis can result from chronic acid reflux, but it can also be triggered by allergies, certain medications, or infections. The inflammation makes the esophageal lining sensitive, causing soreness when food or liquids pass through.

A foreign body sensation, or an actual lodged object, can cause discomfort. This might range from a feeling that something is caught in the throat to sharp pain if an object has caused a scratch or injury. Oral thrush, a fungal infection caused by an overgrowth of Candida yeast, can manifest as creamy white patches in the mouth and throat, leading to soreness.

Epiglottitis, an inflammation and swelling of the epiglottis (a flap of cartilage that covers the windpipe), is a serious and potentially life-threatening condition. It often presents with severe sore throat and difficulty breathing. While rare, particularly in children due to routine vaccinations, epiglottitis requires immediate medical attention.

When to Seek Medical Help

While many cases of painful swallowing resolve on their own, certain symptoms warrant medical evaluation. It is advisable to seek medical help if the pain persists for more than a few days or worsens over time. Difficulty breathing or severe trouble swallowing that prevents eating or drinking require immediate medical attention.

Other indicators that suggest a need for medical consultation include a high fever, the appearance of a rash, or swollen glands in the neck. Hoarseness that lasts longer than two weeks, or the presence of blood in saliva or phlegm, should also be evaluated by a doctor. Unexplained weight loss, or pain accompanied by joint pain or other widespread body symptoms, are reasons to consult a healthcare provider.