What Causes Dry Eyes? Common & Serious Causes Explained
Dry eyes can be caused by Sjögren's Syndrome, Dry Eye Syndrome, Primary Biliary Cholangitis and other conditions. Learn which causes are serious, which are benign, and when to seek urgent medical evaluation.
Updated March 27, 2026
Dry eyes has multiple causes, ranging from benign to serious. The most common include Sjögren's Syndrome, Dry Eye Syndrome, Primary Biliary Cholangitis. Sjögren's syndrome is an autoimmune disease primarily affecting the salivary and lacrimal glands, causing dry eyes (xerophthalmia) and dry mouth (xerostomia). It can be primary or secondary to other autoimmune diseases like RA or lupus.
Clinical Context
The causes of dry eyes range from benign to serious. Identifying the underlying cause requires clinical evaluation. Common causes include Sjögren's Syndrome, Dry Eye Syndrome, Primary Biliary Cholangitis.
Patterns That Narrow the Differential
Updated March 27, 2026What Causes Dry Eyes? Common & Serious Causes Explained usually becomes clinically useful only when the symptom pattern is read in context rather than as a single isolated phrase. On real pages, people search this question when they are trying to separate benign explanations from higher-risk causes such as Dry Eye Syndrome, Primary Biliary Cholangitis. Dry eyes becomes more meaningful when it appears together with Dry eyes, because that combination changes which diagnoses move higher on the differential and which ones can be deprioritised. That is why this page now reinforces the diagnostic path with direct links to the strongest canonical symptom and condition hubs, so Google and users can see a clearer entity relationship instead of another standalone FAQ fragment.
Clinical Pathway
Dry eyes — Symptom HubSymptomSjögren's Syndrome — Full Condition GuidePrimary CauseSjögren's Syndrome — Differential DiagnosisDifferentialSjögren's Syndrome vs. Systemic Lupus Erythematosus (SLE) — Comparisonvs.Dry Eye Syndrome — Full Condition GuideCausePrimary Biliary Cholangitis — Full Condition GuideCauseFrequently Asked Questions
What Causes Dry Eyes? Common & Serious Causes Explained+
Dry eyes has multiple causes, ranging from benign to serious. The most common include Sjögren's Syndrome, Dry Eye Syndrome, Primary Biliary Cholangitis. Sjögren's syndrome is an autoimmune disease primarily affecting the salivary and lacrimal glands, causing dry eyes (xerophthalmia) and dry mouth (xerostomia). It can be primary or secondary to other autoimmune diseases like RA or lupus.
What is the most common cause of dry eyes?+
Common causes include Sjögren's Syndrome, Dry Eye Syndrome, Primary Biliary Cholangitis. The most likely cause depends on age, associated symptoms, and medical history.
When should I see a doctor for dry eyes?+
Seek medical attention if dry eyes is persistent, worsening, sudden in onset, or accompanied by other concerning symptoms.
Can dry eyes be caused by stress or anxiety?+
Yes — psychological stress can contribute to many physical symptoms, but organic causes should be excluded by a healthcare provider.
Our AI Symptom Checker analyzes your symptoms and suggests possible conditions based on clinical guidelines.
Start Free Analysis →