What Doctor Should You See for a Persistent Cough?

Start with Pulmonology for Chronic Coughing

If you're experiencing a persistent cough, the best first step is to schedule an appointment with a pulmonologist—doctors who specialize in respiratory health. A long-lasting cough can be a symptom of various conditions affecting the lungs and airways, such as bronchitis, pneumonia, asthma, tuberculosis, lung cancer, or pleurisy. A specialist in pulmonary medicine can conduct targeted evaluations including chest X-rays, CT scans, pulmonary function tests, and sputum analysis to identify the root cause.

When Ear, Nose, and Throat (ENT) Specialists Can Help

In some cases, chronic coughing originates above the lungs. Conditions like sinusitis, postnasal drip, tonsillitis, or laryngopharyngeal reflux are often managed by an otolaryngologist (ENT doctor). If your cough worsens at night or is accompanied by throat clearing, nasal congestion, or hoarseness, an ENT evaluation may reveal upper respiratory issues that aren't immediately obvious. Allergy testing and nasal endoscopy are common diagnostic tools used in these situations.

Coughs Linked to Heart and Kidney Conditions

Not all persistent coughs stem from respiratory problems. Certain systemic diseases can also trigger chronic coughing. For example, congestive heart failure may lead to fluid buildup in the lungs, causing a dry or bubbly cough, especially when lying down. In such cases, a cardiologist should be consulted. Similarly, advanced kidney disease can result in fluid retention and uremic toxins that irritate the lungs, leading to coughing. Patients with known kidney issues should follow up with a nephrologist if a cough persists without a clear pulmonary cause.

Navigating the Right Path to Diagnosis

The most effective approach is to begin with a visit to a pulmonologist. They can coordinate initial diagnostics and determine whether your symptoms require input from other specialists. If the cause isn't respiratory, your pulmonologist may refer you to ENT, cardiology, or nephrology for further evaluation. This multidisciplinary approach ensures a comprehensive assessment and faster relief.

Don't Ignore a Long-Lasting Cough

A cough that lasts more than three weeks is considered chronic and warrants medical attention. Early diagnosis not only improves treatment outcomes but can also rule out serious underlying conditions. Keep track of associated symptoms—such as fever, weight loss, shortness of breath, or swelling—and share them with your doctor to streamline the diagnostic process.