'sub fertility' is the term given for reduces fertility. In the male this can have several causes including: sperm production problems; blockages in the sperm's delivery system;injuries to the testicles;low or high hormone production;varicocele (varicose veins around the testicle); past illnesses/ infections/ various diseases;and certain medications.

But even if you are diagnosed with low fertility, there is no need to panic. Modern medicine offers an array of treatments that will lead your little soldiers to battle