What types of sperm deformations are there?

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Teratozoospermia is a sperm disorder based on the bad morphology of sperm in the semen of a male. This causes male infertility by hindering the achievement of a natural pregnancy .

The sperm can suffer malformations in its head, neck or tail, possibly due to some failure during its formation process ( spermatogenesis ).

Below you have an index with all the points that we will discuss in this article.

Index

Abnormal spermatozoa

The World Health Organization (WHO) states that a sperm with perfect morphology should have the following characteristics:

  • Oval head and well defined acrosome region in the apical part (upper zone). If there are vacuoles, they can not occupy more than 20% of the area of the head.
  • The neck must be attached to the head by the axial part (area opposite the acrosome) and its length must be 1.5 times that of the head.
  • The tail should measure about 45-50 microns in length and be thinner than the rest of the sperm.
  • The total length of the sperm must be about 50 to 60 microns in total.

Sperm that escape these parameters will be considered as amorphous or abnormal.

Good quality sperm

If you want to obtain more detailed information about the male gamete, we recommend you continue reading in the following article: What is a sperm?

Types of sperm deformations

Now that we know how a normal sperm, with good morphology, we will detail all the types of malformations that can appear in each of its parts.



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