Severe oligozoospermia is not necessarily curable and may be caused by prolonged untreated diseases such as orchitis, epididymitis, prostatitis and varicocele. 1. Testicular inflammation: usually due to testicular inflammation media stimulation around the testicles, so that the testicles can not produce sperm normally, and long-term untreated, causing the phenomenon of oligozoospermia, the possibility of curing this case is not very large. 2. Epididymitis: usually due to epididymitis, stimulation of the epididymis, causing oligozoospermia, which is unlikely to be cured. 3. Prostatitis: it may be due to prostate inflammation mediated by the prostate gland, causing the phenomenon of oligozoospermia, which can usually be cured. 4. Varicocele: due to the influence of testicular temperature and toxins, the treatment of varicocele can improve the phenomenon of oligozoospermia, which can usually be cured. When oligozoospermia occurs, consult the doctor in time. In daily life, one should pay attention to rest, avoid overwork, exercise properly and improve immunity.