IUD Types & Mechanisms — NEET Biology
✅ Asked in NEET 2024Another effective and popular method is the use of Intra Uterine Devices (IUDs). These devices are inserted by doctors or expert nurses in the uterus through vagina. These Intra Uterine Devices are presently available as the non-medicated IUDs (e.g., Lippes loop), copper releasing IUDs (CuT, Cu7, Multiload 375) and the hormone releasing IUDs (Progestasert, LNG-20). IUDs increase phagocytosis of sperms within the uterus and the Cu ions released suppress sperm motility and the fertilising capacity of sperms. The hormone releasing IUDs, in addition,
NTA repeatedly tests whether students can identify the three IUD categories: non-medicated (Lippes loop), copper-releasing (CuT, Multiload 375), and hormone-releasing (LNG-20, Progestasert). The common mistake is confusing how each type works—students often mix up that copper IUDs suppress sperm motility while non-medicated ones increase phagocytosis. Remember: non-medicated = physical barrier increasing phagocytosis; copper = chemical suppression of sperm; hormone-releasing = additional hormonal effects. Since NTA has tested this 11 times across multiple years, focus on distinguishing each mechanism and remembering the example names for each category.
This paragraph was tested 11 times in NEET.
Match List-I with List-II: (NEET 2024) List-I: A. Non-medicated IUD B. Copper releasing IUD C. Hormone releasing IUD D. Implants List-II: I. Multiload 375 II. Progestogens III. Lippes loop IV. LNG-20 Choose the correct answer from the options given below:
Match List-I with List-II relating to examples of various kinds of IUDs and barrier contraceptives: (NEET 2024) List-I: A. Lippes loop B. Progestasert C. Cervical caps D. Multiload 375 List-II: I. Female barrier II. Non-medicated IUDs III. Copper releasing IUDs IV. Hormone releasing IUDs Choose the correct answer from the options given below:
Match List-I with List-II: (NEET 2023) List-I: A. Non-medicated IUDs B. Copper releasing IUDs C. Hormone releasing IUDs D. Vaults List-II: I. Multiload 375 II. Rubber barrier III. Lippes loop IV. LNG-20 Choose the correct answer from the options given below:
Lippe's loop is a type of contraceptive used as: (NEET 2022)
Match List-I with List-II with respect to methods of Contraception and their respective actions. (NEET 2022) List-I: (a) Diaphragms (b) Contraceptive Pills (c) Intra Uterine Devices (d) Lactational Amenorrhea List-II: (i) Inhibit ovulation and implantation (ii) Increase phagocytosis of sperm within uterus (iii) Absence of menstrual cycle and ovulation following parturition (iv) They cover the cervix blocking the entry of sperms Choose the correct answer from the options given below:
Which of the following statements are correct about IUDs? (NEET 2022 Phase 2) a. IUDs decrease phagocytosis of sperm within the uterus. b. The released copper ions suppress the sperm motility. c. IUDs do not make the cervix hostile to the sperm. d. IUDs suppress the fertilization capacity of sperm. e. The IUDs require surgical intervention for their insertion in the uterine cavity. Choose the most appropriate answer:
Which of the following is not an Intra Uterine Device? (NEET 2022 Phase 2)
Which of the following is hormone-releasing IUD? (NEET 2021)
Select the hormone-releasing Intra-Uterine Devices. (NEET 2019)
The function of copper ions in copper-releasing IUDs is:
Which of the following is hormone-releasing IUD? [NEET 2016 Phase 2]
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
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