The quality of semen is determined by the number and quality of sperm to begin the process of fertilization. Therefore, it can be said that the number and quality of sperm is a marker of male fertility. Sperm cells have a short life span and cannot divide. However, after joining the egg, both can develop into new organisms called zygotes. Recognize Sperm Cells In general, the structure of sperm consists of the head, body and tail. Each part of sperm has a different function and content, namely: Head Consists of a circular solid chromatin fiber surrounded by an acrosome. This part contains an enzyme that is used to penetrate a woman's egg. When fertilization, the DNA contained in the sperm head will join with DNA from a woman's egg cell. Body In this section there are mitochondria, which are responsible for producing energy for the tail to move. Tail The part that functions to move the sperm to meet the egg. Damage to DNA in sperm cells can cause damage or