No sperm coming out. What happened?

Sperm failure may be related to a variety of factors, including inadequate sexual stimulation, retrograde ejaculation, obstructed vas deferens, varicocele, testicular disease, drug effects, age, etc. Detailed examination is required to determine the cause and appropriate treatment.1. Insufficient sexual stimulation If there is not enough sexual stimulation in sexual life, sperm failure may result. Can increase sexual stimulation in sexual life, help promote ejaculation. 2. Drugs affect certain drugs, such as antidepressants, antipsychotics, etc., may affect sexual desire and ejaculation function. Patients may consider changing drugs or adjusting the dosage. 3. Retrograde ejaculation Retrograde ejaculation refers to sperm reverse injection into the bladder rather than ejection. This may be caused by urethral stricture, prostatitis, bladder neck muscle relaxation and other reasons. It can be solved by surgical treatment, bladder neck reconstruction and other methods. 4. Blockage of the vas deferens Blockage may lead to sperm can not be normal ejection. This may be caused by inflammation of the vas deferens, trauma, congenital abnormalities and other reasons. Generally, it can be treated by surgery, such as vasectomy, epididymis vasectomy, etc. 5. Varicocele Varicocele may lead to testicular blood circulation disorders, affecting sperm production and ejection. Generally, it can be treated by surgery, such as spermatic vein high ligation. 6. Testicular diseases Some testicular diseases, such as testicular cancer, orchitis, etc., may affect sperm production and ejection. Patients need corresponding treatment according to specific conditions, such as surgery, radiotherapy, chemotherapy, etc.