Increasing demand for fertility treatment seems to correlate with declining semen quality among young men. The factors that cause impaired male reproductive capacity remain to be elucidated. Here, Nordström Joensen et al. suggest that early environmental exposure to endocrine disruptors could promote development of conditions such as testicular dysgenesis syndrome.
- Ulla Nordström Joensen
- Niels E Skakkebæk
- Niels Jørgensen
