A semen analysis can provide your doctor with information about sperm count and the quality of sperm. Your doctor may want to analyse the semen more than once.
An abnormal sperm is one that has defects in shape and/or mobility. Testing for these anomalies involves a detailed analysis of the characteristics of the sperm after dying and examining them under a microscope (seminogram or spermiogram).
According to the percentage of sperm that is considered normal, the doctor can decide on the best form of treatment.