the investigators propose to carry out a prospective study consisting of a systematic research of digestive symptoms in patients with SGSp with the validated Global symptom score (GSS) questionnaire, which allowed to grades severity of 10 digestive symptoms (absent, mild, moderate, or severe), asthenia and fever.

Primary Sjögren syndrome (SGSp) is an autoimmune disease defined by the association of sicca syndrome in the absence of other connective tissues (ie rheumatoid arthritis, systemic lupus erythematosus, scleroderma, dermatopolymyositis). SGSp is complicated by several visceral involvements (pulmonary, renal, neurological, systemic vasculitis ...) and by a chronic alteration of the quality of life related to asthenia, chronic pain and sicca syndrome. Two European-validated scales are currently used in daily clinical practice to assess these two facets of the disease, respectively EUSSAR Sjogren's Syndrome Patient Reported Index (ESSPRI) and ESSDAI (EULAR Sjögren's Syndrome Disease Activity Index). Neither of these two scores evaluate the digestive impairment. Indeed, digestive complaints have been evaluated in a few studies, with a prevalence of 30 to 65%. The precise etiopathogeny of such digestive involvements remains unknown.

Inclusion Criteria:

• Patients with SGSp according to revised American-European criteria
• Patients 18 years of age or older
• Patients affiliated to the French social security care system.

Exclusion Criteria:

• Patients under measure of maintenance of justice.
• Patients unable to understand or to participate to the study.
• Child and major patients making the object of a measure of lawful protection.
• Patients deprived of freedom.
• Concomitant interventional clinical trial