What is the normal sperm rate?

Sperm is an important part of male fertility, and the survival rate of sperm also determines the fertility ability. Generally speaking, a low sperm survival rate will easily affect the normal reproductive function, and it will also easily lead to impotence or premature ejaculation. The normal cervical survival rate needs to be tested based on laboratory tests. The general survival rate is between 60% and 70%.

What is the normal sperm survival rate?

As for the normal sperm survival rate, it is difficult to describe it in unprofessional language to a certain extent. The question you may want to ask is that the survival rate is actually more similar to the indicator of semen, which is called activity rate. We can use this indicator to replace the survival rate. According to the latest WHO fifth edition standard, it is generally greater than 42%, which is the indicator of sperm survival rate. According to the old WHO fourth edition standard, it is generally greater than 60%. Regardless of which standard is used, the higher the sperm activity rate, the better the sperm quality. In clinical practice, we see that the indicators of most normal men are about 70%-80%. If it is lower than 40%, it can be considered that the sperm survival rate is relatively low and needs to be treated in time.

Level classification

Generally divided into 4 levels

Grade 0 (grade d) means that the sperm cannot move and does not move;

Grade I (grade c) means that the sperm does not move forward but moves in situ;

Grade II (grade b) means that the sperm moves slowly or sluggishly forward and moves slowly;

Grade III (grade a) indicates that sperm moves rapidly in a straight line.

Under normal circumstances, grade 3 (grade a) sperm is greater than or equal to 25%; or the sum of grade 3 (grade a) and grade 2 (grade b) sperm is greater than or equal to 50%.

Daily Notes

Nicotine in tobacco affects sperm motility by directly and indirectly damaging sperm. Long-term alcoholics can directly and indirectly affect sperm motility. There are many factors that affect sperm motility, including cosmetics and drugs. In terms of diet, spicy food should be avoided, and foods high in zinc, selenium and protein should be consumed. You can eat more seafood and other foods. In daily life, the causes of asthenozoospermia include incomplete maturity or damage and thinning of the testicular spermatogenic epithelium, which produces sperm of poor quality and weak motility; low semen volume; and seminal plasma mutations. When the epididymis, seminal vesicles, and prostate are inflamed, the pH, oxygen supply, nutrition, and metabolism are not conducive to the activity and survival of sperm.

Low vitality

Low sperm motility is also known as asthenozoospermia, which is one of the most common causes of male infertility in clinical practice. Normal fertility should have more than 70% active sperm. If the active sperm is less than 50%, it is abnormal, that is, the forward-moving sperm (grade a and b) in the semen parameters is less than 50% or the grade a moving sperm is less than 25%. If the sperm is completely inactive, it is dead sperm. Low sperm motility is also called asthenozoospermia.

Male patients with asthenozoospermia may not have obvious systemic symptoms. They are usually diagnosed through sperm tests when they go to the hospital for treatment due to long-term infertility after marriage. However, some patients may experience impotence, decreased libido, chills, fatigue, weakness in the waist and knees, and other symptoms of insufficient kidney yang and kidney qi, or symptoms of damp heat in the body, such as difficulty urinating, dripping, short and dark urine, bitter mouth and dry throat.

Patients with low sperm motility are advised to understand the cause of low sperm motility through routine semen analysis and medical history, such as whether there is varicocele, reproductive tract infection, etc., to clarify the true cause of low sperm motility, and then treat the symptoms according to the cause.