Dr. El Hachem is an obstetrician-gynecologist specialized in reproductive medicine. A former Assistant of the Paris Hospitals at Cochin Port-Royal and then at the Diaconesses fertility center, he has developed deep expertise in infertility, medically assisted reproduction, and advanced gynecological ultrasound. A graduate of Saint Joseph University of Beirut and of Paris-Saclay University, he has completed several university diplomas and international trainings in France, Europe, and the United States. A trainer in Continuing Professional Development, he also teaches in the University Diploma in infertility and ART at Universite Paris Cite and within the CNGOF Academy of Excellence. Author of numerous publications and a regular speaker at international conferences such as SEUD and ESHRE, he is particularly interested in unexplained infertility, endometriosis, egg donation, and the optimization of ART treatments. Committed to public health, he actively participates in initiatives aimed at promoting reproductive health.