Introduction: Trachoma is a keratoconjunctivitis caused by a bacterium chlamydia trachomatis transmitted by dirty hands, soiled linen and flies. Trachoma is a real public health problem in developing countries including Mauritania and particularly in the Adrar regions.

Objective: To determine the prevalence of follicular trachoma and trachomatous trichiasis in the Adrar regions.

Materials and Methods: This is a retrospective longitudinal study aimed analytically over a period from 2004-2017 based on series of surveys conducted by NPCB and its partners (ITI, FB and LCI).

Results: Our study shows a follicular trachoma rate of 27.12% in 2004; 11.2% in 2007; 7.3% in 2011 and 2.99% in 2017, as well as a trachomatous trichiasis rate 2.2% in 2004; 1% in 2007; 0,48% in 2011 and 0,12% in 2017 this in the Adrar region. The therapeutic coverage rate averaged 85% in the various MDA campaigns.

Conclusion: Trachoma, which was a real public health problem in the Adrar regions in the early 2000s, has been significantly reduced, allowing the transition from the endemic state to the pre-certification phase that requires Epidemiological monitoring., but which decreased significantly thanks to the implementation of the SAFE strategy, especially the S and A main object of our study.