Assertion: little amniotic fluid | /r/HasProperty | rh blood incompatibility
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text: When a cause can be traced, among the common reasons are poorly-controlled maternal diabetes, twin or multiple gestations (especially when one twin has too little amniotic fluid and the other produces too much, referred to as twin-to-twin transfusion syndrome), fetal abnormalities which make it difficult for the baby to swallow and process the fluid normally (e.g., a cleft lip or palate, gastrointestinal blockage, hydrocephaly, or other neurological problems or heart defects), Rh blood incompatibility, which can bring on fetal anemia and other factors.