1.If infertility is suspected to be caused by poor semen quality, what tests should be done at the consultation? In the case of severe oligospermia, it is recommended that the patient perform tests for Y chromosome microdeletion, ultrasound, sex hormones, etc. The female partner can be temporarily unchecked. If the sperm quality is not normal but not very poor, it is recommended that the female partner do a comprehensive examination for more than a year. 2. How many times do you need to do semen examination and how long is the interval between each examination? What are the effects of too long or too short a time? In general, at least two semen examinations are recommended. If you are worried about abnormal sperm report caused by sampling error, it is recommended to repeat the test again at an interval of 3-7 days. If you are worried about abnormal sperm report caused by recent poor health condition, it is recommended to retest after three months after improving your health condition. 3. Can the diagnosis of oligozoospermia be confirmed if the semen test results are good and bad? Personally, I suggest that if there are 2 semen test results, refer to the report with good results. If there are more times and only a few times are good, refer to the poor ones. If the good and poor ones are around half, it is recommended to refer to the average post semen situation to choose the way of conception. 4.What are the precautions before semen examination? The subject should abstain from sexual intercourse for 3 to 5 days before receiving the examination and perform the examination when the abstinence has not exceeded 7 days; dream emission should be regarded as one act of semen emission. Testosterone propionate, testosterone phenylacetate, nandrolone phenylpropionate, etc. should not be taken within 1 week prior to the examination. Avoid alcohol, smoking, staying up late and overexertion before the examination. It is better to obtain semen by masturbation method, do not use ordinary latex condoms (containing spermicide, which affects the survival of sperm), and make sure to collect complete semen when collecting semen. 5.What tests are usually needed to clarify the cause of oligozoospermia after it is diagnosed? In fact, most patients have idiopathic oligozoospermia, for which no clear cause can be found. However, patients can be tested for Y chromosome microdeletion and sex hormones to rule out congenital defects as well as to assess the patient’s spermatogenic function, thus reducing the patient’s treatment cycle and treatment cost. 6.How long do I have to wait for an appointment for each of these tests? How long does it take to get the results after the test? We can get the report of semen routine test, sex hormone report and ultrasound test on the same day, but AZF gene test takes 10 working days. 7.How often do patients who are on medication need to be seen again and what tests are done at the follow-up appointment? Usually, the follow-up is once a month, and the longest period is not more than three months. The semen condition is routinely reviewed, and some patients need to have their sex hormone levels reviewed.