One in five men could suffer from fertility problems. And scientists have warned that it's just going to get worse... according to Dailymail

Scientists are warning that rising levels of male infertility have become so perilous that it is a serious 'public health issue'

Reports claim that as many as one in five healthy young men between the ages of 18 and 25 produce abnormal sperm counts.
Only 5 to 15 per cent of their sperm is good enough to be classed as 'normal' under World Health organisation rules - proving that infertility is not just a female problem. Indeed, among those experiencing difficulty with conception, a male fertility problem is considered important in about 40 per cent of couples.

Poor spermatogenesis in patients with inflammation of the genital tract is associated with scrotal hyperthermia. These patients can benefit from acupuncture treatment.

Why?

Scrotal skin temperature and sperm concentration were measured before and after acupuncture treatment.so if scrotal skin temperature decresed, sperm count should get better. About 90% of the latter patients suffered from high gonadotropins or mixed etiological factors. Low sperm count in patients with inflammation of the genital tract seems to be associated with scrotal hyperthermia, and, consequently, acupuncture treatment is recommended for these men.
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Source:Asian J Androl. 2009 Mar;11(2):200-8. Epub 2009 Jan 5.

The new reference values represent the bottom line - the lowest acceptable values of sperm health - which are much lower than the average values of fertile men. Higher sperm values are know to help speed up the time to conception and are in associated with significantly increased fertility. Normal - especially low/normal - is not optimal when you want to achieve peak fertility but it is helpful to know the bottom-line values.

Another research: Bisphenol A, commonly abbreviated as BPA, is an organic compound with two phenol functional groups used to make polycarbonate plastic and epoxy resins, along with other applications.Men with high urinary levels of the chemical bisphenol A (BPA) may be at risk for sperm problems that can cause infertility. A study in the journal Fertility and Sterility looked at 218 men with and without BPA exposure in Chinese workplaces.

Worldwide, one in 20 men has problems with fertility. Of these problems, up to eight out of 10 are thought to be the result of damage caused by free radicals.
Free radicals are tiny particles that have previously been found to damage sperm affecting either their ability to move or their genetic make-up.
Anti-oxidants can reduce the harmful effects caused by free radicals, and previous research has shown that men with fertility problems have higher levels of free radicals and lower levels of anti-oxidants.Diabetes:Some of these problems are directly related to infertility including diminished sperm quality. When the blood has excess sugar in it, the sperm produced in the testes are more likely to have defects that prevent fertilization. There are also other symptoms of diabetes that can severely impede the ability to reproduce. These include obesity, fatigue, loss of libido and the inability to maintain an erection. Most of these symptoms are a result of too much sugar in the blood, therefore a properly treated diabetic person can overcome most of them, especially with proper nutrition, exercise and weight management.