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Male Infertility


General information
Infertility is defined as the inability of a couple to achieve conception and have a child after at least one year of regular sexual contact without contraceptive protection. According to the definition of health, as formulated by the World Health Organization (WHO), infertility is a health disorder that needs treatment.

Procreation and the creation of a family are considered the right of every human being.
 

Prognostic factors
The most important factors affecting the prognosis of infertility are:
• The duration of infertility
• Primary or secondary infertility
• The results of the sperm test
• The age and fertility status of the partner

Male fertility can be reduced by:
• Congenital or acquired urogenital disorders
• Malignancies
• Urinary tract infections
• Increased temperature of the scrotum
• Endocrine disorders
• Genetic abnormalities
• Immune factors

 

It is important to emphasize that the term infertility applies equally to men and women. As for the causes, in 40% the male factor is involved, in 40% the female factor and in the remaining 20% both are "responsible". It is divided into primary, when the couple has not had a previous pregnancy, and secondary, when one of the two partners has had a child in the past.
Infertility should be treated as a couple's problem and not an individual problem. Regardless of age, it is estimated that about 1 in 8 couples trying to have a child face some minor or major infertility problem.
The role of the doctor, who monitors the infertile couple, is central, he directs them to only the necessary tests and offers them therapeutic solutions respecting the time, effort and expenses required. At the same time, he must constantly remind them, in the painstaking effort to have the child they desire, of the message of optimism that nowadays stems from scientific knowledge and reality: the chances are on their side by following modern diagnostic and therapeutic medical methods.


About 15% of couples do not achieve pregnancy within a year and seek treatment for infertility.

 

     
     
 

Male infertility

Male infertility can be due to causes that affect or control the function of the testicles (pre-testicular causes), causes caused by or arising from the function of the testicles (testicular causes), and causes related to sperm abduction and ejaculation (post-testicular causes). In the investigation of male infertility, a proper medical history and clinical examination play a primary role.
When taking the history, the doctor will ask about the existence of diseases, such as diabetes mellitus, mumps, previous surgeries on the genital system, as well as sexual history. Also, the man will be asked if he has or had contact with harmful environmental and/or occupational factors, as well as if he received any medication.

In summary, the points on which the history taking of the infertile man should be focused are as follows:
• Fertility history
• Sexual activity of the couple
• Diseases, injuries or operations on the genital system
• Infections of the genitourinary system
• Sexually transmitted diseases
• Recent febrile infections
• Systemic diseases
• Drug intake
• Exposure to harmful factors
• Habits and lifestyle

 

During the clinical examination, the doctor will check the penis, the scrotum, in which the testicles are located, the epididymis and the vas deferens, which is the passageway for sperm from the testicles and epididymis to the urethra. Finally, secondary sexual characteristics, such as hair growth, muscle mass and voice timbre, will also be examined.

In summary, the clinical examination should include:
• Record the height and weight of the man
• Control of body proportions
• Hair distribution
• Skin texture
• Breast control
• Examination of the external genitalia (penis, size and structure of the testicles, epididymis)
• Presence or absence of varicocele (by Valsava test, inspection and palpation of the inguinal areas)

 

A key tool in controlling a man's fertility is the sperm chart. It must be performed in specialized centers and its main characteristics are sperm volume, sperm concentration per ml of semen, total sperm count and sperm motility.

• It is important to emphasize that there are no clear boundaries between "normal" and "pathological" spermogram. Thus, the World Health Organization has delineated some reference values, which when not met in a sperm chart, the man has reduced chances of achieving conception in the normal way.

In general, semen should have:
• volume over 2ml,
• sperm count >15 million per ml,
• total sperm count over 40 million,
• motility >45% of fast or moderately moving sperm and
• morphology of more than 4% normal spermatozoa.

 

When spermatozoa are not found in the semen analysis, then we speak of azoospermia. Causes of azoospermia are obstructive or non-obstructive. In obstructive azoospermia, sperm produced at normal rates in the testicles are unable to exit the urethra due to obstruction of the ejaculatory duct of the sperm (e.g., inflammation) or due to a genetic abnormality.
Non-obstructive azoospermia can be due to inherited chromosomal abnormalities and syndromes or acquired conditions such as trauma, testicular torsion, testicular tumor, drugs, toxic substances, radiation, etc.

Measurement of sperm DNA fragmentation (DFI, DNA Fragmentation Index)
Sperm DNA fragmentation is a new test for the assessment of male infertility. The DNA Fragmentation Index (DFI) measurement of sperm is used in the investigation of male fertility, as well as to screen for repeated failed IVF attempts, premature births and miscarriages. Often the causes of infertility are treatable or allow us to take preventive action. For this reason, the recognition and understanding of the diseases by the specialized Urologist is of crucial importance. Despite the great progress of assisted reproduction techniques, the goal of the specialist is not only to find sperm, but to maximize the male reproductive potential which will consequently allow the couple to have a child with the use of less invasive assisted techniques and with the least possible medical , pharmaceutical, psychological but also financial loss.

In the context of prevention, but mainly treatment, the urologist is called upon to offer modern surgical solutions such as:
• correction of clinical varicocele,
• surgical retrieval and collection of testicular tissue and sperm directly from the epididymis or testicles;
• restoration of excretory tract obstruction.

These operations today can and should be performed with the help of microsurgery and the use of sophisticated surgical microscopes that achieve the maximization of the special skills required by the urologist specialized in microsurgery.
Skill and experience in the use of the surgical microscope offer greatly improved results in urological procedures to treat male infertility.


Mr. Gorgoraptis Petros holds a master's degree in "Male Infertility: Laboratory Investigation and Therapeutic Treatment" with a high level of training and a special interest in couple infertility.


 

Infertility


Infertility is defined as the inability of a sexually active couple to achieve pregnancy during one year of free and regular (2-3 weekly) sexual intercourse.
Today about 30% of couples do not achieve pregnancy within a year, of which 15% undergo infertility testing and less than 5% ultimately remain childless.


 

Prognostic factors

The main factors affecting the prognosis of infertility are:
- The duration
- The results of the sperm test (spermogram)
- Age and fertility of the woman

The urologist, as a specialist, must investigate every man with a fertility problem for the presence of abnormalities of the genitourinary system, in order to choose the appropriate treatment. At the same time the gynecologist will investigate the woman. Many times in the investigation a problem arises for both partners.
The diagnosis of male infertility should focus on the presence of underlying disorders. At the same time, it is recommended to check the partner even if disorders are found in the man, because the figures of the World Health Organization prove that in one in four couples with infertility problem, abnormalities are found in both the man and the woman at the same time.

 

What are the main causes of male infertility?
- Cryptorchidism (the man is born with one or both testicles in a higher position than normal, which may be inguinal or inside the abdomen).
- Smoking. Smoking is a recognized risk factor.
- Infections of the genitourinary system (orchitis, epididymitis, prostatitis, urethritis) and sexually transmitted diseases.
- History of testicular torsion (the testicle turns on its axis and does not bleed)
- Chemotherapy at some point in the man's life for malignant diseases, eg leukemia or testicular cancer.
- Radiation therapy
- Genetic factors (p. Klinefelter, cutting off parts of the Y chromosome)
- Medicines, stress, environmental exposure to toxic agents, e.g
- Thyroid diseases
- Varicocele
- Sexual dysfunction/ ejaculation disorders
- Idiopathic (of unknown etiology)

How much does smoking harm fertility? Will stopping it help?

The smoking habit is known to increase the possibility of heart and vascular problems (coronary heart disease, myocardial infarction, narrowing of large and small vessels of the body, such as the carotid and iliac arteries). However, it seems that its role is also important in fertility problems for both men and women. So there are studies that prove that the possibility of erectile dysfunction and complications during pregnancy is greater for smokers.
In women, nicotine and carbon monoxide from tobacco accelerate egg loss. Unfortunately, when an egg 'dies', it is not replaced. For this reason, menopause in smokers can occur 1 to 4 years earlier. The chance of infertility is almost twice as high for women who smoke. This probability increases according to the number of cigarettes per day and the years of smoking.

In male smokers, a reduced number of spermatozoa (oligospermia), reduced motility (asthenospermia) and an increased number of shape abnormalities (teratospermia) are often found in the sperm count. Smoking appears to reduce the sperm's ability to fertilize the egg.
The effect of tobacco seems to be important even in the probability of success of assisted reproduction (insemination or IVF). Assisted reproductive success rates are about 30% higher in prospective parents who are non-smokers. Even after conception, smoking increases the chance of a chromosomal abnormality (such as Down syndrome and trisomy 18), ectopic pregnancy, premature birth and low birth weight. Children of smokers have an increased chance of sudden infant death syndrome (SIDS) and asthma.
The next logical question is whether smoking cessation can be beneficial. The answer is yes. Although lost eggs cannot be replaced, the chance of pregnancy complications is reduced.
Quitting smoking is clearly a difficult task. Today, however, we should know that there are special smoking cessation clinics operating all over the country that have helped tens of thousands of people succeed.

     
     
 

 What tests will the urologist recommend I do?

Sperm analysis – Sperm diagram

Semen examination is the basis for making important decisions about the appropriate treatment. It must be carried out in a specialized laboratory that meets international quality criteria. The transfer of the sperm must be done within 30 minutes and at body temperature (if done from home, it is recommended to transfer the sample under the armpit), after the man has agreed with the microbiologist or reproductive biologist that he must wait for the sample to examine it immediately. If values are within WHO limits, one analysis is sufficient. Only if the results are abnormal should the analysis be repeated.
It is important to differentiate between oligospermia (< 15,000,000 spermatozoa/ml), asthenospermia (< 40% of motile spermatozoa) and teratospermia (< 4% of normal spermatozoa). Quite often all 3 disorders occur simultaneously as oligo-astheno-teratospermia syndrome.

What are the reference values of sperm parameters?
According to the 5th and most recent edition of the WHO manual for the examination and processing of human semen, which was based on extensive studies of fertile men (time to natural conception ≤12 months), the reference values of the Spermodiagram parameters are differentiated as follows:
Semen volume: ≥ 1.5 ml
pH: ≥ 7.2
Sperm concentration: ≥ 15 x 106/ml
Total sperm count: ≥ 39 x 106
Sperm motility: ≥ 32% with propulsive motility (classes a+b) within 60 min of ejaculation
Total sperm motility: ≥ 40% with propulsive and spot motility (categories α+β+γ) within 60 min of ejaculation
Sperm morphology: ≥ 4% normal forms
Sperm samples with characteristics inferior to those mentioned are considered to have reduced fertilizing capacity. Even in these cases, the phenomenon of natural conception is not excluded, but the probability is lower than normal!

Hormonal control
Endocrine dysfunction is more common in infertile men than in the general population, although it remains relatively rare.
Hormonal testing includes determination of some hormones (FSH, LH and testosterone). Also, depending on the results, further hormonal control such as prolactin and thyroid-stimulating hormone (TSH) may be needed

 

 

 

Ultrasound scan of the scrotum

Ultrasound is a useful tool for diagnosing scrotal abnormalities. Triplex scrotal ultrasound can reveal varicocele in 30% of infertile men. Testicular tumors are found in 0.5% of infertile men and calcifications, a potentially precancerous condition in 5%, particularly in patients with a history of cryptorchidism. Rectal ultrasound is indicated in men with low sperm volume (< 1.5 ml), to rule out obstruction of the genital tract caused by a prostate cyst or obstruction of the ejaculatory ducts.

Microbiological control
Indications for microbiological control are abnormal urine samples, urinary tract infections, accessory male gland infections and sexually transmitted diseases. The clinical significance of determined leukocytes in semen, and of sperm culture in general, has yet to be determined. Nevertheless, in combination with a small volume of semen, it may indicate a partial obstruction of the genital system due to chronic inflammation of the prostate or seminal vesicles. Genital infections trigger the production of spermotoxic oxygen free radicals. Gonorrhea and chlamydia infections can cause blockage of the epididymis and vas deferens.

 

Genetic assessment - karyotype

A significant number of male fertility disorders, also described as idiopathic male infertility, are essentially genetic in origin.
Taking the family history and analyzing the karyotype reveals some of these disorders and allows the appropriate guidance of the individual. This is very important later in the intracytoplasmic sperm injection (ICSI) process, because fertility disorders and possible genetic abnormalities can be passed on to the offspring.
Chromosomal abnormalities are more common in men with severe oligozoospermia and with azoospermia. The most common sex chromosome disorder is Klinefelter syndrome (47 XXY), which affects about 10% of men diagnosed with azoospermia. Klinefelter syndrome is characterized by gynecomastia and hypogonadism, but not always! A eunuchoid phenotype and psychological disturbances are sometimes found. Both testicles are very small. 60% of patients have decreased testosterone levels with age and require hormone replacement. In men with extremely poor sperm quality, chromosome translocations and excisions can be found, which can be inherited and cause frequent miscarriages and congenital abnormalities in the offspring.

     
     
 

Testicular biopsy
Indications for testicular biopsy are azoospermia or severe oligoasthenospermia. Biopsy helps distinguish between testicular failure and genitourinary obstruction. Testicular biopsy may also be performed in patients with clinical evidence of non-azoospermia who decide to undergo IVF.
What are the treatment solutions and main recommendations for infertility?

Counseling treatment
Sometimes specific lifestyle habits can be responsible for poor sperm quality: for example alcohol abuse, smoking, use of anabolic steroids, strenuous events (marathon road) and increasing the temperature of the scrotum by using sauna, hot bath and underwear or professional exposure to hot springs. A significant number of drugs can also affect spermatogenesis.

Hormonal treatment
No studies have confirmed that hormonal therapies such as human menopausal gonadotropin (HMG)/chorionic gonadotropin (HCG), androgens, antiestrogens (clomiphene and tamoxifen), prolactin inhibitors (bromocriptine), and steroids improved pregnancy rates in men with idiopathic oligoasthenospermia. However, some mainly hormonal disorders can be treated with medication.

 

 

 

Empirical treatments

We often prescribe empirical treatments, such as the administration of vitamin E, tamoxifen, or complexes of vitamins and antioxidant agents. There is no strong literature, but some men with idiopathic oligoasthenospermia will benefit.

Surgical treatment
Varicocele
The treatment of varicocele is a controversial topic in andrology. This is based not only on the actual need to treat varicocele, but also on its importance as a cause of spermatogenesis disorder. The results of a significant number of non-randomized studies support that varicocele may be a cause of infertility. Successful treatment leads to a significant improvement in sperm quality in at least 40-50% of operated men.

Specialized microsurgical procedures
They require a specialized andrologist and the use of an excellent microscope in the operating room. Depending on the problem, epididymal anastomosis or vas deferens can be done when there is an obstruction. Even so, normal pregnancy rates after surgery are still low, below 20-30%.
Male infertility is particularly common and today around 30% of couples do not achieve pregnancy within a year. The urologist (and not the gynecologist) is the specialist doctor who will investigate the man and explain to him the available treatment options.