<prompt> IUCD most commonly associated with expulsionLippes loopCu T - 200Cu T - 380 ALNG - IUCD  <response>: The expulsion rate among IUCDs is high for lippes loop 12-20 Expulsion can be paial or complete Expulsion usually occurs during the first few weeks following inseion or during menstruation Reference: Park;s textbook of preventive and social medicine, 23rd edition, Page no: 497, 499 