Foetal Alcohol Spectrum Disorder
Foetal Alcohol Spectrum Disorder (FASD) is a term used to describe the permanent, lifelong neurodevelopmental and physical impairments that can occur in an individual who was exposed to alcohol before birth. It represents a wide range of mild-to-severe symptoms caused by maternal alcohol consumption crossing the placenta, which disrupts the normal development of the fetus's brain and critical organs.
Categories of FASD
FASD functions as an umbrella medical term encompassing several distinct diagnoses, classified by the specific symptoms and physical traits present.
Fetal Alcohol Syndrome (FAS)
The most severe form, characterised by specific facial abnormalities, central nervous system problems and growth deficits.
Partial Fetal Alcohol Syndrome (pFAS)
Hyperactivity, poor impulse control, difficulty understanding consequences and problems with emotional regulation.
Alcohol-Related Neurodevelopmental Disorder (ARND)
Intellectual, behavioral and learning disabilities without the associated physical or facial growth changes.
Alcohol-Related Birth Defects (ARBD)
Structural defects involving the heart, kidneys, vision or skeletal joints.
Common Symptoms
The effects of FASD are diverse and affect both brain function and bodily systems over a lifespan.
Brain & Cognitive Issues
Poor short-term memory, short attention spans, low IQ, learning difficulties and speech delays.
Behavioral Challenges
Executive dysfunction, sensory processing issues and poor impulse control .
Physical Features
Small head circumference, shorter-than-average height, low body weight and poor fine motor skills or coordination.
Facial Dysmorphology
Distinct features often include small eye openings, a thin upper lip and a smooth philtrum (the vertical ridge between the nose and upper lip).
Organ Damage
Structural defects involving the heart, kidneys, vision or skeletal joints.
Prevention and Diagnosis
There is no known safe amount, type or timing of alcohol consumption during pregnancy. A developing fetus lacks a mature liver to process and break down toxins, meaning blood alcohol concentrations match maternal levels and can cycle through the amniotic fluid. The brain develops throughout the entire gestational period, FASD is 100% preventable by completely avoiding alcohol while pregnant or planning a pregnancy.
Diagnosing FASD can be challenging as there is no single medical test or blood panel. Specialist medical teams evaluate confirmed or highly suspected history of prenatal alcohol exposure alongside neurodevelopmental and physical assessments. While FASD cannot be cured, early multidisciplinary support, personalised educational interventions and clear daily structural routines can significantly help individuals manage symptoms and thrive.