<prompt> Which is most likely complication of IUDHypofibrinogenemiaSterilityCervical tearNone of the above  <response>: Ans. is a i.e. Hypofibrinogenemia Complication of UID Psychological upset. Uterine Infections. Blood coagulation disorder : If the fetus is retained for more than 4 weeks as occurs in 10-20 there is a possibility of defibrination hypofibrinoginemia from silent disseminated intravascular coagulopathy DIC. During labor -- Uterine ineia, retained placenta and PPH. Hypofibrinogenimia occurs due to gradual absorption of thromboplastin, liberated from the dead placenta and decidua, into the maternal circulation. Critical level of fibrinogen is 100 mgml. Hypofibrinogemia defibrination is observed predominantly in -- Retained dead fetus -- Rh incompatibility 