Researchers also say that the body needs to maintain a proper testicular temperature for normal sperm production and development, or what is termed as spermatogenesis, in medical terms. Their studies have not determined the exact frequency and time of heat exposure that is capable of producing reversible or irreversible changes in spermatogenesis. But previous studies made suggest that 1°C above the baseline is the possible minimal thermal gradient. Based on their findings, the repetitive use of a laptop near the proximity of the male pelvic area might cause permanent damage and infertility. Teenage boys and young men are advised to limit their use of laptop computers on their laps until further studies provide more information on this type of thermal exposure.
At the British Fertility Society conference, Dr Allan Pacey, senior lecturer in Andrology at the University of Sheffield, said that it is already a common knowledge that increasing the temperature of the testicles can affect sperm production. He added that, “… worrying about having a laptop on your knees for only an hour can increase the temperature of the scrotum so significantly.” He warned that men who use laptops regularly should be very careful. Further work is needed to see if regular laptop use is a risk factor in male fertility and man’s sexual health, in general.