What is the outcome of fertilization?

1. 
   Resumption and completion of the second meiotic division and release of the second polar body.
   
2. 
   Development of the Zygote
   
3. 
   Restoration of the diploid number of chromosome
   
4. 
   Determination of sex
   
5. 
   Induction of Cleavage
   
6. 
   A factor of human variation
   

The inability in individuals to achieve fertilization is termed Infertility.

Women with repeated miscarriages are also classified as Infertility.

i. Egg must be released from one of her ovaries (ovulation)

Therefore, infertility can result from problems that interfere with any of these steps listed above.

The risk factors of infertility include age, stress, poor diet, smoking, alcohol, sexually transmitted disease, overweight, underweight, caffeine intake, and too much exercise.

Factors influencing infertility in females include:

1. 
   Severe endometriosis
   
2. 
   Pelvic Inflammatory Disease (PID)
   
3. 
   Ovulation disorders
   
4. 
   Elevated prolactin
   
5. 
   Polycystic ovary syndrome (PCOS)
   
6. 
   Early menopause
   
7. 
   Benign uterine fibroids
   
8. 
   Pelvic adhesions
   

• 
  Endometriosis
  
• 
  Pelvic Inflammatory Disease
  
• 
  Uterine Fibroids
  
• 
  Pelvic Adhesions
  
• 
  Ovarian Failure