Please answer carefully List and briefly describe the typica

Please answer carefully.

List and briefly describe the typical causes of/contributors to infertility in the male, identifying the most common.

The typical causes/ contributors of male infertility are enlisted as follows:

1. Hypothalamic or pituitary disorder

2. Sperm transport disorder

3. Gonad disorder

4. Sperm abnormalities which may occur due to one or more of the reasons:

a. Inflammation of testicles

b. Swollen veins of scrotum

c. Abnormally developed testicles

5. Low sperm count which may be due to:

a. Pre-existing genetic disorder

b. Use of tobacco, alcohol or other drugs

c. After puberty severe mumps infection

d. Exposure to radiation and/or poisonous chemicals

e. Wearing tight underwear

f. Injury to groin area

g. Hormone disorder

h. Hernia repair

I. Prevoius infection causing any blockage.

6. Ejaculation problems which may occur due to:

a. Premature ejaculation

b. Retrograde ejaculation

c. Erectile dysfunction

d. Any complication from radiation or surgery

7. History of sexually transmitted infections

8. Urinary tract infections

9. Use of certain types of medications

10. Emotional stress

11. Obesity

The most common cause is the low sperm count which may occur for various reasons as explained above.