Reproductive Health Class 12 Biology Notes | Complete NCERT NEET Revision (Hindi + English)

 

🧬 Reproductive Health (Class 12 Biology) – Complete Bilingual Notes for NEET

NCERT-Based | Hindi + English | PYQ Focus | Important NCERT Lines Highlighted


1️⃣ Reproductive Health (प्रजनन स्वास्थ्य)

English:

Reproductive health means a state of complete physical, mental and social well-being in all aspects related to reproduction.

Hindi:

प्रजनन स्वास्थ्य का अर्थ है प्रजनन से जुड़े सभी पहलुओं में शारीरिक, मानसिक और सामाजिक रूप से स्वस्थ होना।

📌 NCERT Highlight (Very Important for NEET):

"A total well-being in all aspects of reproduction."

🔴 PYQ Trap: Reproductive health ≠ only absence of disease.



2️⃣ Problems and Strategies

Major Problems:

  • Population explosion (जनसंख्या विस्फोट)
  • Unwanted pregnancies
  • Sexually transmitted infections (STIs)
  • Maternal and infant mortality
  • Lack of sex education

Government Measures:

RCH Programme

Reproductive and Child Health Care Programme

Started to:

  • Create awareness
  • Reduce infant mortality
  • Improve maternal health
  • Family planning

📌 NEET Fact: RCH Programme was launched in 1997.


3️⃣ Population Explosion

Definition:

Rapid increase in population size.

Causes:

✅ Reduced death rate

✅ Better medical facilities

✅ Increased life expectancy

✅ Decline in maternal mortality


Population Control Methods

Small Family Norm

Slogan: "Hum Do Hamare Do"

Benefits:

  • Better education
  • Better healthcare
  • Better standard of living

4️⃣ Contraception (गर्भनिरोध)

Definition:

Methods used to prevent conception or pregnancy.

Ideal Contraceptive Should Be:

✔ User friendly

✔ Effective

✔ Reversible

✔ No side effects

✔ Easily available

📌 Very Important NCERT Line


Types of Contraceptive Methods

A. Natural Methods

Prevent meeting of sperm and ovum.


1. Periodic Abstinence

Avoid intercourse during fertile period.

Fertile Period:

Day 10–17 of menstrual cycle

🔴 PYQ Favourite


2. Coitus Interruptus

Withdrawal of penis before ejaculation.


3. Lactational Amenorrhea

No menstruation during breastfeeding period.

Effective up to:

6 months after delivery

📌 Frequently Asked in NEET


B. Barrier Methods

Prevent sperm from reaching ovum.

Examples:

Male Condom

Female Condom

Advantages: ✔ Prevent pregnancy

✔ Prevent STDs

✔ Cheap

✔ Easily available

📌 Most effective against AIDS among contraceptive methods.


Diaphragm

Cervical Cap

Vault

Placed in female reproductive tract.


C. IUDs (Intra Uterine Devices)

Inserted into uterus.


Types of IUDs

1. Non-medicated

Lippes Loop


2. Copper Releasing

  • Cu-T
  • Cu-7
  • Multiload-375

Action: ✔ Increase phagocytosis of sperms

✔ Reduce sperm motility

✔ Reduce fertilizing capacity

📌 Very Important NEET Question


3. Hormone Releasing IUDs

  • LNG-20
  • Progestasert

Action: ✔ Make uterus unsuitable for implantation


D. Oral Contraceptive Pills

Examples:

Mala-D

Mala-N

Contain: Estrogen + Progesterone

Action: Prevent ovulation.


Saheli

📌 Very Important PYQ

Developed by:

CDRI Lucknow

Contains:

Centchroman

Non-steroidal pill

Weekly oral pill

🔴 Repeated NEET Question


E. Injectables & Implants

Hormonal preparations.

Prevent: ✔ Ovulation

✔ Implantation


F. Surgical Methods (Sterilization)

Permanent methods.


Vasectomy

Male sterilization.

Vas deferens cut and tied.


Tubectomy

Female sterilization.

Fallopian tubes cut and tied.

📌 Extremely Important NEET Question


5️⃣ Medical Termination of Pregnancy (MTP)

Meaning:

Intentional termination of pregnancy before full term.

Commonly called:

Abortion


MTP Act

Legalized in India in:

1971


Uses

✔ Unwanted pregnancy

✔ Rape cases

✔ Fetal abnormalities

✔ Risk to mother's life


NCERT Fact

Maximum safety during:

First trimester (up to 12 weeks)

🔴 Frequently Asked


6️⃣ Sexually Transmitted Infections (STIs)

Also called:

Venereal Diseases (VD)

Reproductive Tract Infections (RTIs)


Common STIs

Bacterial

  • Gonorrhoea
  • Syphilis

Viral

  • AIDS
  • Genital herpes
  • Hepatitis-B

Protozoan

  • Trichomoniasis

Symptoms

✔ Itching

✔ Pain

✔ Swelling

✔ Discharge


Complications

✔ Infertility

✔ Ectopic pregnancy

✔ Pelvic inflammatory disease

✔ Cancer


📌 NCERT Highlight

AIDS, Hepatitis-B and Genital Herpes are incurable.


7️⃣ Infertility

Definition:

Inability to produce children despite unprotected intercourse.


Causes

Male factors

Female factors

Physical causes

Immunological causes

Psychological causes


Assisted Reproductive Technologies (ART)


IVF

In Vitro Fertilization

Fertilization outside body

Called:

Test Tube Baby Programme


ZIFT

Zygote Intra Fallopian Transfer

Transfer:

Zygote/early embryo (up to 8 blastomeres)


IUT

Intra Uterine Transfer

Embryo transferred into uterus.


GIFT

Gamete Intra Fallopian Transfer

Transfer of gametes into fallopian tube.


ICSI

Intracytoplasmic Sperm Injection

Single sperm injected into ovum.

📌 Very Important NEET Question


AI (Artificial Insemination)

Semen introduced artificially.


8️⃣ Amniocentesis

Technique:

Sampling of amniotic fluid.

Purpose: Detect chromosomal abnormalities.


Misuse:

Sex determination.

Therefore:

Banned in India

🔴 Very Frequently Asked


🟨 NCERT One-Liners for NEET

✅ RCH Programme – 1997

✅ MTP Act – 1971

✅ Saheli → Centchroman

✅ CDRI → Lucknow

✅ Lactational Amenorrhea → 6 months

✅ Vasectomy → Male sterilization

✅ Tubectomy → Female sterilization

✅ Cu-T → Copper releasing IUD

✅ Test Tube Baby → IVF

✅ Amniocentesis banned for sex determination

✅ AIDS, Hepatitis-B, Genital Herpes → Incurable STIs


🎯 Most Repeated NEET PYQ Areas

  1. Saheli & Centchroman
  2. Cu-T mechanism
  3. Lactational Amenorrhea
  4. Vasectomy vs Tubectomy
  5. IVF, ZIFT, GIFT, ICSI
  6. MTP Act 1971
  7. RCH Programme 1997
  8. Amniocentesis misuse
  9. STIs and their causative agents
  10. Ideal contraceptive characteristics

  1. Practice sheet with 200 MCQ test 
  2. 200+ MCQ practice sheet.


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