When is a cough considered chronic?

In adults, a cough lasting longer than eight weeks is considered chronic and warrants evaluation.

Can acid reflux cause a cough?

Yes. Reflux is one of the three most common causes of chronic cough, often without noticeable heartburn. It typically worsens at night or after meals.

Chronic Cough: which doctor should you see?

Last updated: August 12, 2026 · Reviewed by the PickTheDoc.com team · Editorial policy

Short answer: most cases of a chronic cough are handled by a Pulmonologist. Read on for the exceptions.

What this symptom means

A cough is called chronic when it lasts longer than eight weeks in adults. By that point it is no longer a leftover from a cold and deserves investigation. Notably, the three most common causes of chronic cough are not lung diseases at all.

Common causes

Postnasal drip from allergies or sinus congestion
Asthma, including cough-variant asthma
Acid reflux irritating the throat
Chronic bronchitis and COPD
Side effect of certain blood pressure medications
Smoking and environmental irritants

Which doctor treats a chronic cough?

A cough lasting more than eight weeks is typically evaluated by a pulmonologist. If it is driven by sinus congestion or postnasal drip, an ENT may be more appropriate. If it worsens after meals or when lying down, a gastroenterologist may be involved. A primary care physician can sort out which path fits.

When it may be urgent

Call 911 or go to the nearest emergency room if you experience any of the following.

Coughing up blood
Severe difficulty breathing
Chest pain with shortness of breath
Cough with high fever and confusion
Unexplained weight loss with a persistent cough

Frequently asked questions

Which doctor treats a chronic cough?: A pulmonologist evaluates coughs lasting more than eight weeks. Depending on the cause, an ENT or gastroenterologist may be more appropriate.
When is a cough considered chronic?: In adults, a cough lasting longer than eight weeks is considered chronic and warrants evaluation.
Can acid reflux cause a cough?: Yes. Reflux is one of the three most common causes of chronic cough, often without noticeable heartburn. It typically worsens at night or after meals.

Related symptom guides

Track this before your appointment

Doctors think in patterns. Our symptom timeline builder records when this happens, how severe it is, and what you have tried, then prints a summary you can hand over.

Sources

MedlinePlus, U.S. National Library of Medicine (medlineplus.gov)
Centers for Disease Control and Prevention (cdc.gov)
Relevant national medical specialty association guidance

This is not medical advice. This guide explains which type of doctor commonly treats this symptom. It does not diagnose conditions. In an emergency, call 911. Read our full medical disclaimer.

Check your symptoms in the finder