What is Reproductive Health?
The WHO defines reproductive health as a total well-being in all aspects of reproduction — physical, emotional, behavioural, and social. It is not merely the absence of disease. For India, this is significant: with over 1.4 billion people, population control and reproductive awareness are critical public health goals.
This chapter covers contraception, sexually transmitted diseases (STDs), infertility, and assisted reproductive technologies (ART). For NEET, expect 2-3 questions — mostly factual recall about contraceptive methods and ART techniques.
NEET and CBSE boards frequently ask comparison-based questions: barrier vs hormonal methods, IVF vs ZIFT vs GIFT. Make a table and memorise it — this is pure marks for effort.
Key Terms & Definitions
Contraception — deliberate methods to prevent pregnancy. Can be temporary (reversible) or permanent (sterilisation).
STD (Sexually Transmitted Disease) — also called STI (sexually transmitted infection). Diseases transmitted through sexual contact — bacterial (gonorrhoea, syphilis), viral (HIV, hepatitis B, genital herpes), or protozoal (trichomoniasis).
Infertility — inability to conceive after one year of regular unprotected intercourse.
ART (Assisted Reproductive Technology) — medical procedures to help infertile couples achieve pregnancy, including IVF, ZIFT, GIFT, ICSI.
MTP (Medical Termination of Pregnancy) — intentional termination of pregnancy before full term. Legal in India up to 24 weeks under specific conditions (Medical Termination of Pregnancy Act).
Contraceptive Methods — Classification
flowchart TD
A[Contraceptive Methods] --> B[Natural/Traditional]
A --> C[Barrier]
A --> D[Hormonal]
A --> E[IUD/IUCD]
A --> F[Surgical/Sterilisation]
B --> B1[Periodic abstinence]
B --> B2[Coitus interruptus]
B --> B3[Lactational amenorrhoea]
C --> C1[Male condom]
C --> C2[Female condom]
C --> C3[Diaphragm/cervical cap]
D --> D1[Oral pills]
D --> D2[Implants/injections]
D --> D3[Emergency pills]
E --> E1[Copper-T/Cu-7]
E --> E2[Hormone-releasing IUD]
F --> F1[Vasectomy - male]
F --> F2[Tubectomy - female]Natural Methods
Periodic abstinence — avoid intercourse during the fertile period (days 10-17 of a 28-day cycle). The ovum survives 24-48 hours; sperm survive up to 72 hours in the female tract.
Coitus interruptus (withdrawal) — male withdraws before ejaculation. Unreliable because pre-ejaculatory fluid may contain sperm.
Lactational amenorrhoea — after childbirth, intense breastfeeding suppresses ovulation (due to high prolactin inhibiting GnRH). Effective only up to 6 months post-delivery and only if menstruation has not resumed.
Barrier Methods
These physically prevent sperm from reaching the ovum.
| Method | Description | Advantage |
|---|---|---|
| Male condom | Latex sheath over penis | Also protects against STDs |
| Female condom | Polyurethane pouch in vagina | Woman-controlled |
| Diaphragm/cervical cap | Covers cervix | Reusable, no hormonal side effects |
| Spermicidal agents | Creams, jellies | Used with barriers for higher efficacy |
Condoms are the ONLY contraceptive method that also protects against STDs (including HIV). This is a frequently tested fact in NEET.
Hormonal Methods
These work by preventing ovulation, thickening cervical mucus, or making the endometrium unreceptive.
Oral contraceptive pills (OCPs) — contain synthetic estrogen and progesterone (or progesterone alone — mini-pills). They inhibit ovulation by suppressing FSH and LH through negative feedback.
Saheli — a non-steroidal oral pill developed by CDRI, Lucknow. Contains centchroman. Taken once a week (after an initial daily loading). It has very few side effects because it is non-hormonal (anti-estrogenic).
Saheli is a favourite NEET question. Remember: weekly pill, non-steroidal, developed in India (CDRI Lucknow), active ingredient is centchroman.
Injectable contraceptives — e.g., Depo-Provera (progesterone), given every 3 months.
Implants — e.g., Norplant, placed under the skin of the upper arm, releases progesterone slowly over several years.
Emergency contraception — pills like levonorgestrel (i-pill) taken within 72 hours of unprotected intercourse. NOT for regular use.
Intrauterine Devices (IUDs)
Inserted into the uterus by a doctor. Three types:
| Type | Example | Mechanism |
|---|---|---|
| Non-medicated | Lippes loop | Increases phagocytosis of sperm in uterus |
| Copper-releasing | Cu-T, Cu-7, Multiload 375 | Cu ions suppress sperm motility and fertilising capacity |
| Hormone-releasing | Progestasert, LNG-20 | Makes uterus unsuitable for implantation, thickens cervical mucus |
Students often think IUDs prevent fertilisation. Copper IUDs mainly suppress sperm motility and may also prevent implantation. Hormone-releasing IUDs primarily work by thickening cervical mucus and altering the endometrium.
Surgical Methods (Sterilisation)
Vasectomy — cutting and tying a small portion of the vas deferens in males. Prevents sperm from reaching the ejaculatory duct.
Tubectomy — cutting and tying a small portion of the fallopian tube in females. Prevents the ovum from reaching the uterus.
Both are permanent (reversal is difficult and not always successful). They are the most effective contraceptive methods.
Sexually Transmitted Diseases (STDs)
| Disease | Causative Organism | Type | Key Symptom |
|---|---|---|---|
| Gonorrhoea | Neisseria gonorrhoeae | Bacterium | Pus discharge, painful urination |
| Syphilis | Treponema pallidum | Bacterium | Painless chancre, then rash |
| Chlamydia | Chlamydia trachomatis | Bacterium | Often asymptomatic |
| Genital herpes | Herpes simplex virus (HSV-2) | Virus | Painful blisters |
| Genital warts | Human papillomavirus (HPV) | Virus | Warts on genitalia |
| HIV/AIDS | Human immunodeficiency virus | Virus | Immune deficiency |
| Hepatitis B | Hepatitis B virus | Virus | Liver inflammation |
| Trichomoniasis | Trichomonas vaginalis | Protozoan | Frothy discharge |
Bacterial STDs (gonorrhoea, syphilis, chlamydia) are curable with antibiotics. Viral STDs (HIV, herpes, hepatitis B, HPV) are NOT curable — only manageable. This distinction is commonly tested.
Prevention:
- Use condoms during intercourse
- Avoid multiple sexual partners
- Early detection and treatment
- Avoid sharing needles
- Screening of blood before transfusion
Infertility and Assisted Reproductive Technologies (ART)
When a couple cannot conceive despite trying for over a year, they may be diagnosed with infertility. Causes can be in either partner — low sperm count, blocked fallopian tubes, hormonal imbalances, endometriosis, etc.
ART Methods
| Technique | Full Form | Procedure |
|---|---|---|
| IVF | In Vitro Fertilisation | Egg and sperm fused outside body in lab; embryo transferred to uterus |
| ZIFT | Zygote Intra Fallopian Transfer | Zygote (up to 8-cell stage) transferred to fallopian tube |
| GIFT | Gamete Intra Fallopian Transfer | Unfertilised egg + sperm transferred to fallopian tube |
| ICSI | Intracytoplasmic Sperm Injection | Single sperm injected directly into the ovum |
| IUI | Intrauterine Insemination | Processed semen placed directly in uterus |
| AI | Artificial Insemination | Semen collected and introduced into vagina/uterus |
Key distinction for NEET: In IVF, fertilisation happens in the lab. In GIFT, fertilisation happens in the body (fallopian tube). In ZIFT, fertilisation happens in the lab but the zygote is placed in the fallopian tube (not the uterus).
IVF (test-tube baby) — the most well-known ART. The process:
- Hormonal stimulation of the female to produce multiple eggs.
- Eggs collected by aspiration.
- Sperm and eggs mixed in a culture dish (or ICSI used if sperm count is very low).
- Embryo cultured for 2-5 days.
- Embryo transfer (ET) — embryo placed in the uterus (IVF-ET) or fallopian tube (ZIFT).
Surrogacy — when another woman carries and delivers the baby for the infertile couple. India’s Surrogacy (Regulation) Act, 2021 allows only altruistic surrogacy by close relatives.
Medical Termination of Pregnancy (MTP)
MTP is legal in India under the MTP Act (amended 2021):
- Up to 20 weeks — with opinion of one registered medical practitioner
- Up to 24 weeks — with opinion of two doctors (for specific categories: minors, survivors of assault, etc.)
- Beyond 24 weeks — only if substantial fetal abnormality approved by a medical board
MTP is NOT a contraceptive method. It is a corrective measure for unplanned pregnancies. Using MTP as contraception is medically dangerous and ethically wrong. NEET may include a statement testing this distinction.
Population Control Measures in India
India launched the National Family Planning Programme in 1951 — the first country to do so. Current strategies include:
- Raising the legal age of marriage (18 for females, 21 for males)
- Incentives for small families (two-child norm)
- Contraceptive distribution and awareness campaigns
- Education of women — strong correlation with lower fertility rates
- Encouraging spacing between children
Solved Examples
Example 1 (NEET Level — Easy)
Q: Name the contraceptive method that also provides protection against STDs.
A: Condoms (both male and female). They act as a physical barrier preventing exchange of body fluids.
Example 2 (NEET Level — Medium)
Q: Differentiate between GIFT and ZIFT.
A: In GIFT, unfertilised gametes (egg + sperm) are transferred into the fallopian tube — fertilisation occurs inside the body. In ZIFT, the egg is fertilised in the lab first, and the zygote (up to 8-cell stage) is transferred into the fallopian tube. The key difference: GIFT = in vivo fertilisation; ZIFT = in vitro fertilisation with tubal transfer.
Example 3 (CBSE Board — Medium)
Q: Explain how copper-T prevents pregnancy.
A: The Copper-T is an IUD that releases copper ions into the uterine cavity. These ions are toxic to sperm — they suppress sperm motility and fertilising capacity. Additionally, the physical presence of the IUD causes a local inflammatory response in the endometrium, making it less receptive to implantation.
Common Mistakes to Avoid
Mistake 1 — Confusing vasectomy and tubectomy targets. Vasectomy = vas deferens (male). Tubectomy = fallopian tube (female). Simple mnemonic: V for vas (vasectomy), T for tube (tubectomy).
Mistake 2 — Thinking IVF babies develop entirely outside the body. Only fertilisation and initial cell division happen in vitro. The embryo is transferred to the uterus where normal pregnancy continues.
Mistake 3 — Saying Saheli is a hormonal pill. Saheli is non-steroidal and non-hormonal. It contains centchroman, which is an anti-estrogen.
Mistake 4 — Claiming all STDs are curable. Bacterial STDs can be cured with antibiotics. Viral STDs (HIV, herpes, HPV, Hepatitis B) have no cure — only management.
Mistake 5 — Mixing up emergency contraception and abortion pills. Emergency pills (like i-pill/levonorgestrel) prevent ovulation or implantation if taken within 72 hours. They do NOT terminate an established pregnancy. Abortion requires MTP under medical supervision.
Practice Questions
Q1. What is amniocentesis? Why has it been banned for sex determination in India?
Amniocentesis is a procedure where a sample of amniotic fluid is drawn from the uterus to test for chromosomal abnormalities in the fetus. It was misused in India for sex determination, leading to female foeticide. The Pre-Conception and Pre-Natal Diagnostic Techniques (PCPNDT) Act, 1994 bans its use for sex determination, though it is still allowed for detecting genetic disorders.
Q2. Why is lactational amenorrhoea considered a natural contraceptive? What is its limitation?
During intense breastfeeding after childbirth, high prolactin levels inhibit GnRH release, suppressing ovulation. No ovulation means no pregnancy — hence it acts as a natural contraceptive. Its limitation: it is effective only up to 6 months after delivery and only if the mother is exclusively breastfeeding and menstruation has not resumed.
Q3. What is ICSI and when is it used?
ICSI (Intracytoplasmic Sperm Injection) involves injecting a single sperm directly into the cytoplasm of an ovum using a micro-needle. It is used when the male has a very low sperm count, poor sperm motility, or when previous IVF attempts have failed.
Q4. Name two STDs caused by bacteria and two caused by viruses.
Bacterial: Gonorrhoea (Neisseria gonorrhoeae) and Syphilis (Treponema pallidum). Viral: HIV/AIDS (Human Immunodeficiency Virus) and Genital herpes (Herpes simplex virus type 2).
Q5. How does the oral contraceptive pill prevent pregnancy?
Oral pills contain synthetic progesterone and estrogen (or progesterone alone). These hormones inhibit GnRH secretion via negative feedback, which suppresses FSH and LH from the pituitary. Without FSH and LH, follicular development and ovulation do not occur. Additionally, they thicken cervical mucus (blocking sperm) and alter the endometrium (preventing implantation).
Q6. Differentiate between IUI and IVF.
In IUI (Intrauterine Insemination), processed semen is placed directly into the uterus — fertilisation occurs inside the body. In IVF (In Vitro Fertilisation), eggs are retrieved, fertilised with sperm in the laboratory, and the resulting embryo is transferred to the uterus. IUI is simpler and less invasive; IVF is used for more complex infertility cases.
FAQs
What is the most effective reversible contraceptive method? Hormone-releasing IUDs (like LNG-20) have the highest efficacy among reversible methods, with failure rates below 1%. Implants are equally effective.
Can a vasectomy be reversed? Reversal (vasovasostomy) is possible but success rates vary (40-90% depending on how long ago the vasectomy was done). It is considered a permanent method.
What is the difference between infertility and sterility? Infertility means difficulty conceiving — it may be treatable. Sterility means complete inability to reproduce — it is usually irreversible (e.g., after bilateral removal of ovaries or testes).
Why is Saheli considered a better oral contraceptive? Saheli is non-steroidal, so it avoids the side effects of hormonal pills (weight gain, mood changes, cardiovascular risks). It is taken once a week (better compliance). It was developed in India (CDRI, Lucknow) and is available at subsidised rates.
Is HIV transmitted through mosquito bites? No. HIV is transmitted through sexual contact, blood transfusion, sharing needles, and from mother to child (during delivery or breastfeeding). Mosquitoes do not transmit HIV because the virus does not replicate in mosquitoes and is destroyed in their gut.
What is surrogacy? Is it legal in India? Surrogacy is when a woman carries a pregnancy for another couple. India’s Surrogacy (Regulation) Act, 2021 allows only altruistic surrogacy (no payment to the surrogate) by a close relative of the intending couple. Commercial surrogacy is banned.