Oligohydramnios is a condition in which there is an abnormally low level of amniotic fluid surrounding the fetus in the uterus during pregnancy. This can be caused by various factors, such as dehydration, fetal abnormalities, placental insufficiency, or maternal health conditions. Oligohydramnios can lead to complications during pregnancy and childbirth, such as poor fetal growth, preterm birth, and umbilical cord compression. Treatment may involve monitoring the condition closely and potentially inducing labor if necessary.