Siddique, Md Abu BakkarSaha, SudipBose, KallolGhorai, SudiptaKhan, Kalimuddin2026-01-132026-01-132018https://hdl.handle.net/20.500.14572/4239Md Abu Bakkar Siddique Department of Paediatric Medicine, Chittaranjan Seva Sadan College of Obstetrics, Gynaecology and Child Health, Kolkata, West Bengal, India Sudip Saha Department of Paediatric Medicine, Chittaranjan Seva Sadan College of Obstetrics, Gynaecology and Child Health, Kolkata, West Bengal, India Kallol Bose Department of Paediatric Medicine, Chittaranjan Seva Sadan College of Obstetrics, Gynaecology and Child Health, Kolkata, West Bengal, India Sudipta Ghorai Department of Paediatric Medicine, Chittaranjan Seva Sadan College of Obstetrics, Gynaecology and Child Health, Kolkata, West Bengal, India Kalimuddin Khan Department of Paediatric Medicine, Chittaranjan Seva Sadan College of Obstetrics, Gynaecology and Child Health, Kolkata, West Bengal, IndiaAbstract: We report a case of sirenomelia baby (Mermaid syndrome) born to a twenty three years old female at 37 weeks of gestation. Sirenomelia is characterized by fusion of the lower limbs with absent kidneys, absent external genitalia and other gastrointestinal defects. It results from the failure of normal vascular supply from the lower aorta in vitro, maternal Diabetes mellitus has been associated with caudal regression syndrome and sirenomelia.en-USMermaid syndromeSirenomeliaCaudal regressionArticle