What is the normal level of abnormal sperm count?

Sperm is a relatively important substance in the male body. It has a very important impact on male fertility. If the sperm is abnormal, such as a high sperm deformity rate, it is easy to cause male infertility symptoms. So, what is the normal index of abnormal sperm? Below, we will introduce you to the relevant knowledge of abnormal sperm index in detail!

1. What is abnormal sperm?

Generally, sperm abnormalities are manifested by morphological variations of the head, body, and tail. Head abnormalities include giant head, amorphous head, double head, etc. Body abnormalities include thick body, broken body, incomplete body, etc. Tail abnormalities include curled tail, double tail, missing tail, etc. Teratozoospermia refers to one of the common causes of male infertility in men of childbearing age.

2. Normal range of sperm shape and size

1. Head

The head is 3.5-5.0 microns long and 2.0-3.0 microns wide; the sperm head is a regular oval. When the length and width of the sperm head are more than 5 and 3 microns, respectively, it is called a large head; when they are less than 3 and 2 microns, respectively, it is called a small head. Clinically significant sperm head abnormalities include conical (length and width are less than 5 and 2 microns, respectively), irregular, double-headed, and pear-shaped heads. Decayed sperm heads have vacuoles.

2. Body (middle section)

The body is 5-7.0 microns long and 1.0 micron wide. A width of more than 2 microns usually reflects that the paddle droplets have not completely degenerated, and its impact on infertility remains to be explored. If the paddle droplets are larger than half of the sperm head, it means that the sperm is immature and is abnormal.

3. Tail

The sperm tail is 45 microns long. Curled tails are often associated with mycoplasma infection. Some people also report that curled sperm tails are associated with zinc. Deformities such as double tails and tail breaks may be associated with asymptomatic reproductive system infections. Therefore, if this phenomenon occurs, semen microbiology examination can be performed.

3. Abnormal sperm rate

The abnormal sperm rate is a measure of whether a man's sperm is healthy. In the semen of a normal man, the proportion of sperm with good motility is generally >50%. Of course, there are also abnormal sperm in the semen of a normal man, and the percentage is generally less than 30%. If the abnormal sperm percentage is higher than 50%, it is called high abnormal sperm, which can lead to infertility. The abnormal sperm rate is mainly determined by semen testing. If the abnormal sperm rate is higher than 70%, a chromosome test should be performed. If there is a chromosomal disease, it will be difficult to treat.