Dry Eyes and Dry Mouth: When Should You Consider Sjögren’s Disease?

Dry eyes are easy to blame on screens or air conditioning. A dry mouth may seem like a sign that you need more water. Often, those explanations are reasonable. But when dryness persists—particularly when it affects both the eyes and mouth—it is worth asking whether there is an underlying cause.

Sjögren’s disease is one possibility. The important question is not whether you have ever experienced dryness, but whether your symptoms form a pattern that deserves investigation.

What is Sjögren’s disease?

Sjögren’s disease, previously commonly called Sjögren’s syndrome, is an autoimmune condition. The immune system can affect the glands that produce tears and saliva, making the eyes and mouth persistently dry. It can also affect other parts of the body. ¹

It may occur on its own or alongside another autoimmune disease, such as rheumatoid arthritis or lupus. Although it is more common in women, men and children can develop it too. ²

Dryness does not automatically mean Sjögren’s

Dry eye can result from tears evaporating too quickly, problems with the eyelids or their oil-producing glands, contact lenses, prolonged screen use, or environmental exposure. ³

Dry mouth has its own possible explanations, including dehydration, mouth breathing, and medications. Some antihistamines, antidepressants, and other medicines can contribute to dryness. A medication review is therefore an important part of the assessment; do not stop prescribed treatment without discussing it with your doctor. ²,⁴

Diabetes and previous radiation treatment to the head or neck can also cause dry mouth. Less commonly, conditions such as active hepatitis C infection, sarcoidosis, or IgG4-related disease may mimic aspects of Sjögren’s; whether to investigate these depends on the clinical findings. ⁵,⁶

In Dubai, air conditioning and long hours indoors may aggravate symptoms. However, a plausible environmental explanation should not prevent further assessment when dryness is persistent or accompanied by other concerning features.

Which symptoms deserve closer attention?

Consider seeking assessment if you regularly experience several of the following:

• Gritty, burning, or uncomfortable eyes, with a frequent need for lubricating drops.
• A persistently dry or sticky mouth, including waking at night to drink.
• Needing water to swallow dry foods, such as crackers or bread.
• Recurrent swelling near the cheeks or jaw, where the major salivary glands are located.
• An increase in dental decay despite reasonable oral hygiene.
• Dryness accompanied by persistent fatigue, joint pain, or joint swelling. ¹,²,⁴

None of these findings confirms Sjögren’s. Fatigue and joint pain, in particular, have many possible causes. Their importance depends on the history, examination, and whether there is objective evidence of gland dysfunction or inflammation.

You do not need to wait until symptoms become severe. Persistent dryness that disrupts eating, sleep, vision, or daily activities deserves evaluation even when the eventual explanation is not autoimmune disease.

How is Sjögren’s investigated?

There is no single test that answers the question in every patient. Assessment brings together symptoms, medication history, examination, and selected investigations. An ophthalmologist or dentist may identify the first clues, while a rheumatologist evaluates the possible autoimmune disease. ⁴

Depending on the findings, investigations may include:

• Blood tests: anti-SSA/Ro antibodies and other tests chosen to assess autoimmunity, inflammation, or possible organ involvement.
• Eye tests: measurement of tear production and examination for damage to the eye surface.
• Saliva assessment: measurement of salivary flow, sometimes supported by salivary gland ultrasound.
• A minor salivary gland biopsy: a small sample, usually from inside the lower lip, when additional evidence is needed. Not everyone requires a biopsy. ⁴,⁷

Negative antibodies do not, by themselves, exclude Sjögren’s. Conversely, a positive antibody result alone does not establish the diagnosis. The results must be interpreted alongside the clinical picture. ⁴,⁷

If you are pregnant or planning a pregnancy and have positive anti-SSA/Ro antibodies, tell your rheumatologist and obstetrician. These antibodies carry a small risk of problems with the baby’s heart rhythm, so pregnancy planning and monitoring should be individualized. ⁷

The ACR/EULAR classification criteria help define consistent groups of patients for research. They can inform an assessment, but they are not a self-diagnosis checklist or a substitute for clinical judgment. ⁵

Why the diagnosis matters beyond dryness

Reduced tears can harm the eye surface, while reduced saliva increases the risk of dental decay and oral infections. Protecting the eyes and teeth is therefore part of treatment, rather than simply a matter of comfort. ²,⁴

Some patients also develop inflammation involving joints, nerves, lungs, kidneys, or other organs. Treatment and follow-up depend on what is affected; immune-suppressing medication is not automatically needed for dryness alone. ²,⁷,⁸

Sjögren’s is associated with an increased risk of lymphoma, although most patients do not develop it. New or persistent salivary gland swelling, enlarged lymph nodes, unexplained weight loss, or drenching night sweats should be assessed promptly. These symptoms have other possible causes, but should not be ignored. ⁷

What can you do while awaiting assessment?

For dry eyes, lubricating drops can help. Preservative-free preparations are often preferable when drops are needed frequently. Take regular screen breaks and avoid having fans or air-conditioning vents blow directly toward your face. Persistent symptoms warrant an eye examination. ³,⁷

For dry mouth, sip water as needed and consider sugar-free gum if you can chew safely. Saliva substitutes may help with comfort. Brush with fluoride toothpaste and arrange regular dental care; your dentist can advise whether additional fluoride protection is appropriate. Frequent sugary drinks or sweets can worsen the dental risks of a dry mouth. ⁴,⁹

These measures relieve symptoms but do not determine their cause. Treatment may also include prescription eye medicines, medicines that stimulate saliva, or treatment for systemic inflammation, depending on the assessment. ⁴,⁸

Seek urgent eye care for significant eye pain, marked redness, light sensitivity, or a new reduction in vision. Do not assume that an acutely painful or red eye is simply routine dryness. ¹⁰,¹¹

Can children develop Sjögren’s?

Yes. Children may present differently from adults: recurrent swelling of the parotid glands—the glands in front of the ears—can be more prominent than obvious dry eyes or dry mouth. Recurrent or unexplained swelling deserves pediatric assessment, with pediatric rheumatology involvement when an autoimmune cause is suspected. ⁷

When should you see a rheumatologist?

A rheumatology assessment is reasonable when persistent dryness affects both the eyes and mouth, when it accompanies gland swelling or possible inflammatory symptoms, or when an eye doctor or dentist suspects an autoimmune cause.

At Health Call Clinic in Dubai Healthcare City, Dr. Bassel Darwish evaluates adults and children with suspected autoimmune rheumatic disease. Bring your medication list and any previous eye, dental, or blood-test results to the consultation.

Frequently asked questions

Can I have Sjögren’s if my blood tests are normal?

Yes. Some patients do not have the antibodies commonly associated with Sjögren’s. Further investigation depends on the symptoms and objective findings; normal blood tests alone cannot settle the question. ⁷

Does drinking more water treat Sjögren’s?

Water can ease a dry mouth and correct dehydration, but it does not treat autoimmune inflammation or restore normal gland function. Eye and dental protection may still be needed. ⁴,⁸

Do I need a lip biopsy?

Not necessarily. A biopsy is considered when it would help resolve diagnostic uncertainty. Your rheumatologist should explain what it could add and discuss the possible risks, including lip discomfort or altered sensation. ⁷

Can Sjögren’s occur without obvious dryness?

Yes. Gland swelling or systemic features may sometimes be more prominent, particularly in children. That does not mean every unexplained symptom warrants Sjögren’s testing; investigations should follow the clinical findings. ⁷