Patient's question:
Clinical Description: Is a 87% defective sperm rate normal in IVF sperm morphology analysis? What is the normal range? Previous Treatment History and Effect: Never received treatment. Desired Help: What is the normal range? Can Wei Can Xin capsules treat this?Doctor's answer:
Sperm motility is divided into 4 grades:Grade a indicates excellent sperm motility, with rapid straight forward movement;
Grade b indicates good sperm motility, with straight forward movement;
Grade c indicates average sperm motility, with only forward curved movement;
Grade d indicates poor sperm motility, with only localized wriggling in place.
Sperm with rapid forward movement (Grade a) and slightly slower forward movement (Grade b) (Grade a + Grade b) < 50% or Grade a sperm < 25%.
① Mild asthenozoospermia refers to a condition where Grade a + Grade b sperm < 50%, but > 30%, or Grade a sperm < 25%, but > 10%.
② Moderate asthenozoospermia refers to a condition where Grade a + Grade b sperm < 50%, but > 30%, with Grade a sperm < 10%.
③ Severe asthenozoospermia refers to a condition where the number of Grade b + Grade c sperm < 30%, with no Grade a sperm present.
In asthenozoospermia, sperm lack the strength to move forward, making it difficult for them to pass through the cervical canal, uterine cavity, and reach the fallopian tubes to fertilize the egg, thus leading to reduced fertility.
Common causes of asthenozoospermia include:
1. Incomplete maturation or damage to the spermatogenic epithelium in the testes, resulting in poor sperm quality and weak motility;
2. Low seminal fluid volume;
3. Variations in seminal plasma, such as inflammation in the epididymis, seminal vesicles, or prostate, which can negatively affect sperm motility and survival due to changes in pH, oxygen supply, nutrition, and metabolism. If antisperm antibodies are present, they can cause sperm agglutination, thereby reducing their motility.