Dysphagia (Difficulty Swallowing)
Difficulty moving food or liquid from mouth to stomach
Quick Facts
- Type: Swallowing disorder
- Two main forms: Oropharyngeal and esophageal
- Key risk: Choking and food entering the lungs
- Red flags: Weight loss, food sticking, choking
Overview
Dysphagia is the medical term for difficulty swallowing. Swallowing is a complex process that moves food and liquid from the mouth, through the throat, and down the esophagus to the stomach. A problem at any stage can cause dysphagia, which may feel like food sticking, taking extra effort to swallow, or going down the wrong way.
Doctors often divide dysphagia into two types: oropharyngeal dysphagia, involving the mouth and throat, often from nerve or muscle conditions; and esophageal dysphagia, where food seems to stick or hang up in the chest, usually from a problem in the esophagus. Dysphagia is more than an inconvenience: it can lead to poor nutrition, dehydration, and the serious risk of food or liquid entering the lungs. Because it can also be the first sign of a significant condition, new or persistent difficulty swallowing should always be evaluated.
Symptoms
People with dysphagia may notice a range of swallowing-related problems:
- A sensation of food sticking in the throat or chest
- Pain while swallowing
- Coughing, choking, or gagging when eating or drinking
- Bringing food back up (regurgitation)
- Drooling or trouble keeping food in the mouth
- A wet or gurgly voice after eating
- Unintended weight loss or recurrent chest infections from food entering the lungs
Some people start avoiding certain foods or eating more slowly to cope. Trouble swallowing that comes on suddenly, or that is accompanied by weakness, facial drooping, or slurred speech, can be a sign of a stroke and is a medical emergency.
Causes
Dysphagia has many possible causes, grouped by where the problem lies:
- Neurological and muscular: Stroke, Parkinson disease, multiple sclerosis, and muscle disorders can impair the coordination needed to swallow.
- Esophageal narrowing: Strictures, rings, tumors, or scarring from acid reflux can obstruct the passage of food.
- Motility problems: Conditions such as achalasia, where the esophagus does not move food properly.
- Inflammation: Esophagitis from reflux, infection, or allergic conditions.
- Structural issues: Enlarged tissues, pouches in the esophagus, or external compression.
Risk Factors
- Older age, as swallowing changes with aging
- Neurological conditions such as stroke, Parkinson disease, or dementia
- Long-standing acid reflux (GERD)
- Head and neck cancers or their treatment
- A history of esophageal disorders
- Smoking and heavy alcohol use
Diagnosis
Evaluating dysphagia identifies where and why swallowing is impaired:
- History and exam: Whether the trouble is with solids, liquids, or both, and any associated symptoms.
- Swallowing study (barium swallow): X-rays taken while swallowing a contrast liquid show how food moves.
- Endoscopy: A thin camera examines the throat and esophagus and can take biopsies.
- Specialized swallow evaluation: A speech-language pathologist may assess swallowing safety, sometimes with video imaging.
- Esophageal manometry: Measures the muscle contractions of the esophagus.
Treatment
Treatment depends on the cause and aims to make swallowing safe and effective:
- Swallowing therapy: A speech-language pathologist can teach techniques, exercises, and safer postures, especially after stroke.
- Diet changes: Modifying food textures and thickening liquids to reduce choking risk.
- Treating the underlying cause: Acid-reducing medication for reflux, dilating a narrowed esophagus, or treating infection or inflammation.
- Procedures: Stretching a stricture, or surgery for certain structural or motility problems.
- Nutrition support: In severe cases, feeding tubes may be needed temporarily or longer term.
Care is often coordinated among the primary doctor, a gastroenterologist, and a swallowing specialist.
Prevention
- Eat slowly and chew food thoroughly
- Cut food into small pieces and avoid eating when very tired or rushed
- Manage acid reflux to prevent esophageal scarring
- Do not smoke and limit alcohol
- Follow swallowing recommendations after a stroke or with a neurological condition
- Seek early evaluation for persistent swallowing trouble
When to See a Doctor
See a doctor for any new or persistent difficulty swallowing, especially if food sticks, you are losing weight, or you have repeated chest infections. Call emergency services immediately if you:
- Suddenly cannot swallow and food is completely blocked, or you cannot breathe
- Develop difficulty swallowing along with face drooping, arm weakness, or slurred speech, which may be a stroke
- Choke severely while eating
Persistent dysphagia can be a sign of a serious esophageal condition and should always be investigated.
Frequently Asked Questions
What is dysphagia?
Dysphagia is difficulty swallowing food or liquid. It may feel like food sticking, take extra effort, or cause coughing and choking. It can arise from problems in the mouth and throat or in the esophagus, and ranges from mild to serious. New or persistent dysphagia should be evaluated.
What causes difficulty swallowing?
Causes include neurological conditions such as stroke and Parkinson disease, narrowing of the esophagus from strictures or tumors, motility disorders like achalasia, and inflammation from acid reflux or allergic conditions. Identifying the underlying cause is key to effective treatment.
Is dysphagia dangerous?
It can be. Beyond discomfort, dysphagia can lead to poor nutrition, dehydration, and food or liquid entering the lungs, which can cause pneumonia. It can also be the first sign of a serious esophageal condition. This is why persistent difficulty swallowing should always be checked by a doctor.
How is dysphagia treated?
Treatment depends on the cause and may include swallowing therapy with a speech-language pathologist, changing food textures and thickening liquids, acid-reducing medicine for reflux, stretching a narrowed esophagus, or surgery. Severe cases may need temporary feeding support while the cause is addressed.
When is difficulty swallowing an emergency?
Call emergency services if food becomes completely stuck and you cannot swallow or breathe, if you choke severely, or if swallowing trouble comes on suddenly with face drooping, arm weakness, or slurred speech, which may indicate a stroke. These require immediate care.
References
- Mayo Clinic. Dysphagia — Symptoms and causes.
- National Institute on Deafness and Other Communication Disorders (NIDCD). Dysphagia.
- MedlinePlus, U.S. National Library of Medicine. Swallowing problems.
- American Speech-Language-Hearing Association (ASHA).