# In Vitro Fertilization: Biology, Procedure & Ethics
> A comprehensive introduction to IVF for biomedical students, covering clinical procedures, success rates, hormonal regulation, and future AI technologies.

Tags: ivf, reproductive-biology, assisted-reproductive-technology, biomedical-science, embryology, fertility-treatment
## Introduction to In Vitro Fertilization (IVF)
* IVF is an assisted reproductive technology (ART) where oocytes are fertilized by sperm in a lab before embryo transfer.
* Approximately 1 in 6 couples worldwide experience infertility (WHO, 2023).

## Reproductive Biology Background
* Key hormones include FSH (follicular development), LH (ovulation trigger), Estrogen, and Progesterone.
* Natural fertilization involves ovulation, capacitation, zona penetration, cortical reaction, syngamy, and cleavage.

## Step-by-Step IVF Procedure
1. **Ovarian Stimulation:** Daily FSH injections to stimulate multiple follicles.
2. **Oocyte Retrieval:** Ultrasound-guided aspiration; typically 8–15 oocytes retrieved.
3. **Fertilization:** Standard IVF (conventional insemination) or ICSI (Intracytoplasmic Sperm Injection).
4. **Embryo Culture:** Day 5 blastocyst stage is preferred for transfer.
5. **Embryo Transfer:** Ultrasound-guided placement into the uterus.
6. **Pregnancy Testing:** βhCG blood test 10–14 days later.

## Success Rates & Factors
* Age is the strongest predictor: <35 years (32% live birth rate) vs >44 years (2%).
* Other factors: embryo quality (PGT-A), ovarian reserve (AMH), sperm parameters, and lifestyle (BMI, smoking).

## Risks & Ethics
* **Medical Risks:** Ovarian Hyperstimulation Syndrome (OHSS), multiple pregnancies, and emotional/financial stress.
* **Ethical Considerations:** Genetic screening (PGT), embryo storage, accessibility, and legal frameworks like the UK HFEA 1990.

## Future Developments
* AI-powered embryo grading (EmbryoScope).
* In vitro gametogenesis (IVG) and mitochondrial replacement therapy.
* Advanced vitrification (cryopreservation) techniques.
---
This presentation was created with [Bobr AI](https://bobr.ai) — an AI presentation generator.