Difficulty Swallowing (Dysphagia): Causes, Symptoms, and Treatment

What is Difficulty Swallowing?

Difficulty swallowing, medically known as dysphagia, is the sensation that food, liquids, or saliva is stuck in the throat or chest. It may feel like food is passing too slowly or not at all. Dysphagia can occur at any age but is more common in older adults. It can be a temporary issue or a sign of a more serious underlying condition.

Swallowing is a complex process involving the mouth, throat (pharynx), esophagus, and multiple nerves and muscles. When any part of this system is disrupted, swallowing difficulties can arise. Dysphagia can lead to complications like malnutrition, dehydration, or aspiration pneumonia (when food or liquid enters the lungs).

Source: Mayo Clinic

Common Causes

Difficulty swallowing can stem from various conditions affecting the mouth, throat, or esophagus. Below are some of the most common causes:

• Gastroesophageal Reflux Disease (GERD): Chronic acid reflux can irritate and damage the esophagus, leading to narrowing or spasms that make swallowing difficult.
• Esophageal Stricture: A narrowing of the esophagus often caused by scar tissue from GERD, radiation therapy, or other injuries.
• Achalasia: A rare condition where the lower esophageal sphincter (the muscle that opens to let food into the stomach) fails to relax properly, causing food to back up.
• Stroke: A stroke can damage the nerves and muscles involved in swallowing, leading to dysphagia. This is common in stroke survivors.
• Neurological Disorders: Conditions like Parkinson’s disease, multiple sclerosis (MS), or amyotrophic lateral sclerosis (ALS) can impair the nerves and muscles needed for swallowing.
• Esophageal Tumors: Cancerous or non-cancerous growths in the esophagus can block or narrow the passage of food.
• Eosinophilic Esophagitis (EoE): A chronic immune system disorder where white blood cells (eosinophils) build up in the esophagus, causing inflammation and narrowing.
• Muscle Disorders: Conditions like myasthenia gravis or muscular dystrophy can weaken the muscles involved in swallowing.
• Infections: Infections like candidiasis (thrush) or herpes esophagitis can cause inflammation and pain, making swallowing difficult.
• Aging: Natural wear and tear on the esophagus or weakened muscles in older adults can contribute to dysphagia.

Sources: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), CDC

Associated Symptoms

Difficulty swallowing rarely occurs alone. It is often accompanied by other symptoms that can help identify the underlying cause. Common associated symptoms include:

• Pain while swallowing (odynophagia)
• Sensation of food being stuck in the throat or chest
• Drooling or inability to control saliva
• Hoarseness or a gurgly voice
• Frequent heartburn or acid reflux
• Unexplained weight loss
• Coughing or choking while eating or drinking
• Regurgitation (food or liquid coming back up)
• Chest pain or pressure
• Recurrent pneumonia (due to aspiration)

If you experience any of these symptoms along with difficulty swallowing, it’s important to consult a healthcare provider for evaluation.

When to See a Doctor

While occasional difficulty swallowing may not be cause for alarm, persistent or worsening symptoms should be evaluated by a doctor. Seek medical attention if you experience any of the following:

• Difficulty swallowing that lasts longer than a few days
• Weight loss due to inability to eat enough
• Pain with swallowing
• Regurgitation or vomiting
• Choking or coughing during meals
• A sensation of food being stuck in your throat or chest
• Hoarseness or voice changes lasting more than a week

Early diagnosis and treatment can help prevent complications like malnutrition, dehydration, or aspiration pneumonia.

Source: Johns Hopkins Medicine

Diagnosis

If you see a doctor for difficulty swallowing, they will likely start with a detailed medical history and physical exam. Depending on your symptoms, they may recommend one or more of the following tests:

• Barium Swallow Test: You drink a barium solution, and X-rays are taken to observe how the liquid moves through your esophagus. This helps identify blockages or structural issues.
• Endoscopy: A flexible tube with a camera (endoscope) is passed down your throat to examine the esophagus, stomach, and sometimes the small intestine. Biopsies can be taken if needed.
• Manometry: A test that measures the pressure and coordination of muscle contractions in the esophagus while you swallow.
• pH Monitoring: Measures acid levels in the esophagus over 24 hours to diagnose GERD or acid reflux.
• Flexible Endoscopic Evaluation of Swallowing (FEES): A small camera is passed through the nose to observe swallowing in real time.
• CT or MRI Scan: Imaging tests to look for tumors, inflammation, or other abnormalities in the throat or chest.

These tests help determine the cause of dysphagia and guide treatment decisions.

Source: Cleveland Clinic

Treatment Options

The treatment for difficulty swallowing depends on the underlying cause. Here are some common approaches:

Medical Treatments

• Medications:
  • Proton pump inhibitors (PPIs) for GERD or acid reflux
  • Muscle relaxants for esophageal spasms
  • Corticosteroids for eosinophilic esophagitis
  • Antibiotics or antifungals for infections
• Esophageal Dilation: A procedure to widen a narrowed esophagus using a balloon or dilator.
• Botulinum Toxin (Botox) Injections: Used to relax a tight esophageal sphincter in conditions like achalasia.
• Surgery: May be needed for tumors, severe strictures, or achalasia (e.g., Heller myotomy).
• Swallowing Therapy: A speech-language pathologist can teach exercises to improve muscle strength and coordination for swallowing.

Home and Lifestyle Remedies

• Avoid foods that are hard to swallow, such as tough meats, dry bread, or sticky foods like peanut butter.
• Cut food into smaller pieces and chew thoroughly.
• Eat slowly and take smaller bites.
• Drink plenty of fluids with meals to help food pass more easily.
• Avoid alcohol, caffeine, and spicy foods if you have GERD.
• Eat upright and stay upright for 30-60 minutes after meals to reduce reflux.
• Try thickening liquids if thin liquids cause choking or coughing.

Source: NHS

Prevention Tips

While not all causes of dysphagia can be prevented, you can reduce your risk by adopting healthy habits:

• Manage GERD by avoiding trigger foods, eating smaller meals, and not lying down after eating.
• Quit smoking, as it increases the risk of esophageal cancer and GERD.
• Limit alcohol consumption, which can irritate the esophagus.
• Stay hydrated to keep the esophagus lubricated.
• Maintain good oral hygiene to prevent infections like thrush.
• Seek early treatment for conditions like stroke, Parkinson’s, or MS to manage symptoms effectively.

If you have a chronic condition that affects swallowing, work with your healthcare team to manage it proactively.

Emergency Warning Signs

Difficulty swallowing can sometimes be a sign of a medical emergency. Seek immediate medical attention if you experience any of the following:

• Sudden inability to swallow saliva, leading to drooling
• Severe chest pain or pressure (could indicate a heart attack)
• Difficulty breathing or turning blue (signs of choking or airway obstruction)
• Sudden weakness or paralysis on one side of the body (signs of a stroke)
• Coughing up blood or black, tarry stools (signs of internal bleeding)
• Severe allergic reaction (e.g., swelling of the throat or tongue)

If you or someone else is choking and cannot breathe, call emergency services immediately and perform the Heimlich maneuver if trained to do so.

Source: World Health Organization (WHO)