Sjögren's Syndrome (Dryness Bi)
Overview
Dryness Bi (zaobi) is a bi disorder caused by dryness pathogen damaging fluids and yin deficiency with collateral obstruction, characterized by dryness of the mouth and eyes, joint pain, and dry rough skin. It often arises from congenital insufficiency, external dryness-heat pathogen, or prolonged illness consuming yin fluids, leading to liver-kidney yin deficiency, fluid depletion and blood dryness, and malnourishment of collaterals. Emotional fire may also scorch fluids and form stasis, causing dryness and stasis to bind together. The disease involves the mouth, eyes, skin, and joints, and relates to the lung, stomach, liver, and kidney. Clinically it presents with dry mouth and throat, dry eyes with reduced tears, dental caries, parotid swelling, joint pain, and dry itchy skin, often accompanied by fatigue and low-grade fever. Pattern differentiation should distinguish deficiency and excess: deficiency mainly involves yin deficiency and fluid depletion; excess often involves dryness-heat, blood stasis, and phlegm coagulation.
Pattern differentiation (clinical patterns)
Yin Deficiency with Fluid Depletion
Dry mouth and throat, dry eyes with reduced tears, dry skin, five-center heat, afternoon tidal fever, night sweats, red tongue with little or no coating, and a thin rapid pulse.
Nourish yin fluids and generate fluids to moisten dryness.
Dryness-Heat Damaging Fluids
Dry mouth and throat, thirst with preference for cold drinks, dry red eyes, mouth and tongue ulcers, swollen painful gums, dry bound stool, short yellow urine, red tongue with dry yellow coating, and a rapid pulse.
Clear heat and moisten dryness; generate fluids and quench thirst.
Dryness and Stasis Binding Together
Dry mouth and eyes, fixed joint pain, scaly dry skin, subcutaneous ecchymosis, hard enlarged parotid glands, dark red tongue with stasis spots, and a thin choppy pulse.
Invigorate blood and transform stasis; moisten dryness and unblock collaterals.
Connections
Daily care & prevention
Patients should eat a light diet and consume pears, lily bulb, white fungus, Chinese yam, and other yin-nourishing and dryness-moistening foods. Avoid pungent, aromatic, dry, spicy foods, alcohol, tobacco, and overly salty foods. Maintain oral hygiene and rinse the mouth frequently; decoct Mai Men Dong (Radix Ophiopogonis) and Shi Hu (Herba Dendrobii) as a tea substitute. For dry eyes, avoid prolonged screen viewing and use artificial tears. Keep the living environment humid and avoid dry surroundings. Exercise joints moderately and avoid overexertion. Keep emotions smooth and avoid depression turning into fire. Regularly monitor immune markers and liver-kidney function.
When to seek medical care
If there is persistent high fever, dyspnea, hemoptysis, subcutaneous ecchymosis, progressive weight loss, hard enlarged lymph nodes, hepatosplenomegaly, abnormal renal function, or neurological symptoms, it suggests active disease or internal organ involvement, and prompt medical attention is required. Sudden worsening of dry eyes with decreased vision, or dry mouth making eating difficult with recurrent parotid swelling, should also lead to early consultation.