1. Genetic counselling is indicated for men with genetic causes of azoospermia . 2. In men with posttesticular azoospermia a number of approaches are available. 3. After a vasectomy, contraceptive precautions must be continued until azoospermia is confirmed. 4. Usually two semen analyses at three and four months are necessary to confirm azoospermia . 5. Some main types of male infertility include, Teratozoospermia, Oligozoospermia, and Azoospermia . 6. The USP9Y gene is found on the azoospermia factor ( AZF ) region on the Y chromosome. 7. The British Andrological Society has recommended that a single semen analysis confirming azoospermia after sixteen weeks is sufficient. 8. Much study has been focused upon the " azoospermia factor locus " ( AZF ), at Yq11. 9. Mutation of the CFTR gene is found to result in obstructive azoospermia in postpubertal males with cystic fibrosis. 10. Workers exposed to high levels are at risk for granulocytopenia, macrocytic anemia, oligospermia, and azoospermia .
