Other causes

Hormonal disorders

If the interaction of the hormones responsible for sperm production, maturation, and control of male sexual function is disrupted, fertility may be impaired.

Important hormones include:

  • FSH (follicle-stimulating hormone): stimulates sperm production
  • LH (luteinizing hormone): controls testosterone production

A blood test is performed to detect hormonal disorders. This measures the relevant hormone levels and forms the basis for further treatment.

Some medications can have a negative effect on erectile function, ejaculation, and sperm production. Therefore, patients should only take medication in consultation with the doctors at the Dr. Loimer Fertility Institute, especially during fertility treatment.

Possible effects of hormonal disorders on fertility include:

  • Reduced sperm production
  • Impaired sexual function

Undescended testicles

Normally, the testicles migrate from the abdominal cavity to the scrotum before or shortly after birth. In cases of undescended testicles, at least one testicle has not descended completely. Delayed or even lack of treatment can lead to reduced fertility or even infertility.

Varicocele

Varicose veins on the testicles are called varicoceles. They usually do not cause pain, but can reduce sperm quality and thus impair fertility.

Mumps in childhood

A mumps infection can cause testicular inflammation (mumps orchitis) in boys. This can subsequently reduce fertility and, in rare cases, even lead to infertility.