
Perhaps the most well-known symptom, but also the one most misunderstood. While reduced sex drive is often seen as the main indicator, not every case of low testosterone starts here. In some men, it shows up later, after other subtle symptoms. Alongside this, sperm production may also reduce, affecting fertility.
The fact is testosterone regulates both libido and sperm count. However, since these issues are often treated as separate problems, the underlying condition sometimes goes unrecognised.