Crystals in semen are considered normal. The normal appearance of semen is a milky white jelly-like liquid, and the appearance of crystals in the appearance of most of the phenomenon is a normal physiological phenomenon. But simply from the appearance of the semen is not able to determine whether the quality of the sperm is normal, if the preparation for a year without pregnancy, you need to carry out a semen examination, need to abstain from sex for 3 to 7 days to go to the hospital for a routine semen examination, usually through masturbation to take out the semen, and then carry out a routine semen examination, to be able to clarify the viability of the sperm, the motility of the sperm, sperm quality, and can be analyzed to determine whether it can be naturally pregnant, and so on. If there are abnormal symptoms should be timely medical examination, under the guidance of the doctor for treatment.