People with pFAS have a confirmed history of prenatal alcohol exposure, but may lack growth deficiency or the complete facial stigmata. Central nervous system damage is present at the same level as FAS. These individuals have the same functional disabilities but "look" less like FAS.The following criteria must be fully met for a diagnosis of Partial FAS:
Growth deficiency: Growth or height may range from normal to deficient
FAS facial features: Two or three FAS facial features present
Central nervous system damage: Clinically significant structural, neurological, or functional impairment in three or more of the Ten Brain Domains
Prenatal alcohol exposure: Confirmed prenatal alcohol exposure

Fetal alcohol effects
Fetal alcohol effects (FAE) is a previous term for alcohol-related neurodevelopmental disorder and alcohol-related birth defects. It was initially used in research studies to describe humans and animals in whom teratogenic effects were seen after confirmed prenatal alcohol exposure (or unknown exposure for humans), but without obvious physical anomalies. Smith (1981) described FAE as an "extremely important concept" to highlight the debilitating effects of brain damage, regardless of the growth or facial features. This term has fallen out of favor with clinicians because it was often regarded by the public as a less severe disability than FAS, when in fact its effects can be just as detrimental. Alcohol-related neurodevelopmental disorder
Alcohol-related neurodevelopmental disorder (ARND) was initially suggested by the Institute of Medicine to replace the term FAE and focus on central nervous system damage, rather than growth deficiency or FAS facial features. The Canadian guidelines also use this diagnosis and the same criteria.
Fetal alcohol spectrum disorders (FASDs) are a group of conditions that can occur in a person whose mother drank alcohol during pregnancy. Symptoms can include an abnormal appearance, short height, low body weight, small head size, poor coordination, behavioural problems, learning difficulties, and problems with hearing and sight. Those affected are more likely to have trouble with school, the legal system, alcohol, other drugs, and other areas of high risk. The several forms of the condition (in order of most severe to least severe) are: Fetal Alcohol Syndrome (FAS), Partial Fetal Alcohol Syndrome (pFAS), Alcohol-Related Birth Defects (ARBD),Static Encephalopathy, Alcohol-Related Neurodevelopmental Disorder (ARND) and Neurobehavioral Disorder associated with Prenatal Alcohol Exposure (ND-PAE). Some authorities accept only FAS as a diagnosis, seeing the evidence as inconclusive with respect to other types.Fetal alcohol spectrum disorders are caused by the mothers drinking alcohol while pregnant with the affected person. Surveys from the United States found that about 10% of pregnant women drank alcohol in the past month, and 20% to 30% drank at some point during the pregnancy. 3.6% of pregnant American women met criteria for an alcohol use disorder in a 2001 epidemiological study. The risk of FASD depends on the amount consumed, the frequency of consumption, and the points in pregnancy at which the alcohol is consumed. Other risk factors include the mothers older age, smoking, and poor diet. There is no known safe amount or time to drink alcohol during pregnancy. Although drinking small amounts does not cause facial abnormalities, it may cause behavioral problems.