Testosterone is a male sex hormone, produced mainly in the testicles. Testosterone concentration in adults ranges from 12-35 nmol/l and decreases with age, the older the age, the lower the concentration.

During “lovemaking”, many men encounter many problems when starting “battle” such as feeling self-conscious about their bodies or having problems with erections. These conditions make it difficult for men to achieve orgasm as well as reduce sexual desire. Below are some things that men should know to reduce worries in bed.

Anti-sperm antibodies are one of the causes of male infertility. Anti-sperm antibodies appear in the body and hinder the fertilization process, formation of complexes, or affect the development of the fetus, in some cases causing miscarriage.

About 13 out of 100 couples fail to get pregnant from unprotected sex. In more than one-third of infertility cases, the problem is with the man. This is usually due to problems with sperm production or problems with the sperm reaching the egg.