Andrology: What Is It and Which Male Reproductive Health Conditions Does It Treat?

Andrology is the branch of medicine that examines the male reproductive system and health problems associated with this system. Just like gynecology, which deals with women’s health, andrology sheds light on many issues that directly affect men’s quality of life. Infertility, sexual dysfunctions, hormonal imbalances, and diseases of organs such as the prostate seen in men are among the main areas of interest of this field. In this comprehensive guide, we will discuss in detail what the science of andrology is, which diseases it covers, diagnostic and treatment methods, tips for protecting male health, and frequently asked questions.

The Foundations and History of the Science of Andrology

Andrology is derived from the Greek words “andros” (man) and “logos” (science). This discipline addresses the biological characteristics, physiology, and reproductive health of men from a scientific perspective. Historically, andrology as a specific medical branch for male health is relatively newer. However, observations and interventions regarding male reproductive organs date back to ancient times.

Why Is Andrology Important?

Neglecting male health both reduces the individual’s quality of life and increases public health expenditures. Andrology helps men preserve their reproductive potential, improve their sexual health, and manage health problems that may occur during the aging process. Reproductive problems such as infertility have a direct impact on family planning. Sexual dysfunctions may negatively affect individuals’ psychological health and relationships with their partners. In addition, andrology plays a critical role in the early diagnosis and treatment of important diseases frequently seen in men, such as prostate cancer and benign prostatic hyperplasia. Source: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

The Relationship Between Andrology and Other Medical Fields

Andrology is closely related to many medical branches such as urology, endocrinology, nephrology, psychiatry, cardiology, and genetics. For example, urologists and endocrinologists may work together in infertility treatment. In the treatment of sexual dysfunctions, psychiatrists and cardiologists may also be involved (because some heart conditions may lead to sexual dysfunctions). Hormonal imbalances are closely connected with endocrinology. Prostate diseases are also subjects of both urology and andrology. This multidisciplinary approach ensures that male patients are handled holistically.

Which Diseases Does Andrology Cover? Main Problems Affecting Male Health

Andrology covers a wide variety of health problems seen in men. These diseases may affect reproductive ability, sexual functions, hormonal balance, and overall quality of life. In this section, we will examine the main diseases within the field of andrology in detail.

Infertility

Male infertility is defined as the inability of a couple to achieve pregnancy despite regular and unprotected sexual intercourse for one year. Male-related infertility accounts for approximately 40–50% of infertility cases [Source: American Society for Reproductive Medicine (ASRM)]. Infertility may have many causes:

• Sperm Production Problems: Inability to produce a sufficient number or quality of sperm in the testes. This condition may result from genetic factors, hormonal imbalances, infections (such as mumps), chemical exposures, radiation therapy, or conditions such as varicocele.
• Obstructions in Sperm Transport Pathways: Blockages occurring in the ducts that allow sperm to be expelled from the testes (epididymis, vas deferens). These blockages may be congenital or may occur as a result of infections or surgical interventions (such as vasectomy).
• Sperm Function Disorders: Problems affecting the ability of sperm to reach and fertilize the egg. This may include low sperm motility, sperm shape abnormalities (morphology), or sperm DNA damage.
• Hormonal Causes: Hormonal imbalances such as hypogonadism (insufficient testosterone production) may directly affect sperm production.
• Sexual and Ejaculatory Problems: Conditions such as erection problems, premature ejaculation, or retrograde ejaculation (semen flowing back into the bladder) may reduce the chance of pregnancy.

Sexual Dysfunctions

Sexual dysfunctions are recurrent and persistent problems experienced during sexual desire, arousal, orgasm, or ejaculation. These conditions may be due to both physical and psychological causes.

• Erection Problem (Erectile Dysfunction): The condition in which the penis cannot reach sufficient hardness for sexual intercourse or this hardness cannot be maintained. Causes include diabetes, cardiovascular diseases, obesity, hormonal problems, neurological diseases, psychological factors (stress, anxiety, depression), and side effects of some medications.
• Premature Ejaculation: Ejaculation of semen during or before sexual intercourse, outside the person’s control, usually within a short time. This condition may lead to sexual dissatisfaction and relationship problems. Psychological factors (anxiety, inexperience) and imbalances in serotonin levels may play a role.
• Delayed or Absent Ejaculation (Retarded Ejaculation or Anorgasmia): Difficulty in ejaculation or inability to ejaculate despite sexual stimulation. Hormonal medications, some neurological diseases, prostate surgeries, or psychological problems may cause it.
• Sexual Reluctance (Loss of Libido): Decreased interest and desire toward sexual activity. Low testosterone levels, depression, stress, relationship problems, and chronic diseases may cause this condition.

Hormonal Disorders (Endocrine Andrology)

Hormonal balance in men is vital for general health and reproductive functions. Andrology deals with maintaining this balance and treating conditions that occur when it is disrupted.

• Hypogonadism (Low Testosterone): Testosterone is a hormone that has important effects on sexual development, muscle mass, bone density, sperm production, and mood in men. Hypogonadism refers to conditions in which the body cannot produce enough testosterone. Symptoms may include decreased sexual desire, erection problems, fatigue, depression, decreased muscle strength, and reduced bone density. Causes may include congenital genetic disorders (such as Klinefelter syndrome), testicular damage, brain tumors, obesity, some medications, or aging.
• Gynecomastia: Abnormal enlargement of breast tissue in men. It may be due to causes such as hormonal imbalances (increase in estrogen levels relative to testosterone), obesity, some medications, and liver diseases. It is generally benign but may cause psychological discomfort.

Prostate Diseases

The prostate is an important part of the male reproductive system and may host various diseases. Andrology also plays a role in the diagnosis and treatment of these diseases.

• Benign Prostatic Hyperplasia (BPH): Benign enlargement of the prostate gland with age. It is usually seen in men over the age of 50. It causes symptoms such as frequent urination, difficulty urinating, and waking up at night to urinate by obstructing urine flow.
• Prostatitis: Inflammation of the prostate gland. It may be due to bacterial or non-bacterial causes. It may show symptoms such as pain, burning during urination, frequent urination, and sexual problems.
• Prostate Cancer: A malignant tumor developing in the prostate gland. It usually does not cause symptoms in the early stages. Symptoms may include urinary problems, bloody urine or semen, and bone pain. Early diagnosis is critical for treatment success.

Testicular Diseases

The testes are the main male reproductive organs responsible for sperm and testosterone production. Various problems may occur in these organs.

• Varicocele: Enlargement of the veins returning from the testes. It is usually seen in the left testis and may cause infertility. Increased testicular temperature and impaired blood flow may reduce sperm quality.
• Hydrocele: Fluid accumulation between the membranes around the testis. It is usually painless but causes swelling in the testes.
• Testicular Cancer: Malignant tumors developing in the testes. It is usually seen in young men. Palpable hardness, pain, or swelling in the testis may be a symptom. Treatment success is high when diagnosed early.
• Testicular Torsion: Impairment of blood flow when the testis rotates around itself. It is a condition that causes severe pain and requires emergency surgical intervention.

Other Andrological Problems

• Penile Curvature (Peyronie’s Disease): A condition that causes pain and curvature during sexual intercourse due to the formation of scar tissue inside the penis.
• Andropause (Male Menopause): Hormonal changes that occur as testosterone levels decrease with aging in men. Symptoms may include decreased sexual desire, fatigue, depression, and decreased muscle mass.

Andrology Examination and Diagnostic Methods

Correct diagnosis of diseases in the field of andrology is essential for creating an effective treatment plan. This process includes taking a detailed medical history, physical examination, and various laboratory and imaging tests.

Taking Medical History

The first and most important step of the andrology examination is learning the patient’s medical history, current complaints, and lifestyle in detail. The doctor collects information on the following topics:

• Onset and Duration of Complaints: When did the problem start, how long has it been continuing?
• Sexual History: Frequency of sexual activity, sexual desire, erection quality, ejaculation duration, ejaculation frequency, level of sexual satisfaction.
• Reproductive History: Whether the person has had children before, duration and outcome of pregnancy attempts.
• General Health Status: Chronic diseases (diabetes, hypertension, heart diseases), previous surgeries, medications used.
• Lifestyle Factors: Smoking, alcohol use, dietary habits, stress level, exercise habits, occupational exposures (chemicals, radiation).
• Family History: History of infertility, hormonal disorders, cancer, or sexual dysfunctions in the family.

Physical Examination

Physical examination aims to evaluate the patient’s general health condition as well as detect possible abnormalities in the reproductive organs.

• General Physical Examination: Body mass index, hair growth status, breast tissue examination (for gynecomastia).
• Genital Examination: Appearance of the penis, penile skin, size, structure and consistency of the testes, condition of the epididymides, presence of swelling or mass in the scrotum, varicocele examination.
• Rectal Examination: Performed to evaluate the size, consistency, and sensitivity of the prostate gland (especially in suspected BPH and prostate cancer).

Laboratory Tests

Various blood and urine tests are used in the diagnostic process:

• Hormone Tests:

Total and Free Testosterone: Measures male hormone levels. LH (Luteinizing Hormone) and FSH (Follicle-Stimulating Hormone): Hormones secreted from the pituitary gland and regulating testicular functions. They are important in the diagnosis of infertility and hypogonadism. Prolactin: High levels may cause sexual dysfunctions and infertility. Estradiol (Estrogen): Elevation of this hormone, which is also found in men, may play a role in conditions such as gynecomastia. * TSH (Thyroid-Stimulating Hormone): Thyroid dysfunctions may affect hormonal balance.

• Semen Analysis (Sperm Test): It is the gold standard in the diagnosis of male infertility. Sperm count, motility, shape (morphology), volume, and other features are evaluated.

Sperm Count: Number of sperm in one milliliter of semen. Motility: Percentage of sperm that can move and movement quality. Morphology: Percentage of sperm with normal shape. Viability: Shows whether non-motile sperm are alive. * Other Parameters: Leukocyte (white blood cell) count (may be a sign of infection), pH, viscosity.

• Genetic Tests: Performed to investigate genetic causes of infertility or hormonal disorders (e.g. karyotyping for Klinefelter syndrome).
• Urinalysis and Culture: To investigate urinary tract infections or signs of prostatitis.
• Biochemistry Tests: Tests evaluating general health status such as blood sugar (diabetes screening), kidney and liver function tests, and lipid profile.

Imaging Methods

• Ultrasonography (USG):

Scrotal Ultrasound: Used in the evaluation of the testes, epididymides, and conditions such as varicocele or hydrocele. Transrectal Ultrasound (TRUS): Used for detailed examination of the prostate gland and in suspected BPH and prostate cancer.

• Magnetic Resonance Imaging (MRI): May be used when more detailed imaging is required, especially in prostate cancer staging or rare hormonal disorders.
• Computed Tomography (CT): Generally preferred in situations such as cancer staging or evaluation of retroperitoneal lymph nodes.

Special Tests

• Penile Doppler Ultrasound: Used to investigate the causes of erection problems. It evaluates blood flow in the vessels.
• Urodynamic Tests: Used to evaluate urination function, especially in suspected BPH or neurogenic bladder.
• Sperm Function Tests: Tests that evaluate sperm motility and fertilization capacity in more detail (e.g. HOS test, anti-sperm antibodies).
• Prostate Specific Antigen (PSA) Test: Measures PSA levels in the bloodstream. High PSA levels may suggest conditions such as prostate cancer or BPH, but do not provide a definitive diagnosis.

Andrology Treatment Methods: Solutions for Problems

Treatment of andrological problems varies according to the underlying cause, severity of the disease, and the patient’s general health condition. Treatment approaches cover a wide range from medication therapy to surgical interventions, from lifestyle changes to psychological support.

Medication Treatments

• Hormone Replacement Therapy (HRT): In cases of low testosterone levels (hypogonadism), hormone levels are normalized with testosterone injections, gels, patches, or oral medications. This may improve sexual desire, energy levels, and overall quality of life.
• Erection Problem Medications: Phosphodiesterase-5 (PDE5) inhibitors (Sildenafil, Tadalafil, etc.) help erection by increasing blood flow to the penis.
• Prostate Medications:

Alpha Blockers: Relax the muscles in the prostate and bladder neck and facilitate urine flow (in BPH treatment). 5-Alpha Reductase Inhibitors: Slow or reduce the growth of the prostate gland (in BPH and prostate cancer prevention).

• Antibiotics: Used in the treatment of bacterial prostatitis or reproductive tract infections.
• Other Medications: Medications with different mechanisms of action may be used in conditions such as sexual reluctance or premature ejaculation.

Surgical Methods

• Varicocele Repair: Surgical ligation or removal of enlarged veins. It is usually performed for infertility treatment. Microsurgical techniques have increased the success rate.
• Removal of Obstructions: Surgical opening of obstructions in sperm transport pathways (e.g. vasovasostomy, vasoepididymostomy).
• Prostate Surgeries:

Transurethral Resection (TURP): One of the most commonly applied methods in BPH treatment. It is the removal of the inner part of the prostate by scraping. Prostatectomy: Surgery to completely remove the prostate gland in prostate cancer treatment. It can be performed with robotic surgery, laparoscopic, or open surgery.

• Penile Prostheses (Happiness Rods): Devices surgically placed in the penis in severe erection problems that do not respond to medication treatment.
• Gynecomastia Surgery: Removal of excessively developed breast tissue by liposuction or surgery.
• Testicular Cancer Surgery: Surgical removal of the testis (orchidectomy).

Lifestyle Changes and Counseling

• Healthy Nutrition: A balanced and antioxidant-rich diet supports general health and reproductive functions.
• Regular Exercise: Important for obesity control, hormonal balance, and cardiovascular health.
• Weight Control: Obesity may reduce testosterone levels and lead to reproductive problems.
• Reducing/Stopping Smoking and Alcohol Consumption: These habits negatively affect sperm quality and sexual functions.
• Stress Management: Chronic stress may disrupt hormonal balance and affect sexual functions and reproductive health.
• Psychological Counseling and Therapy: Effective in overcoming sexual dysfunctions (especially erection problems and premature ejaculation) or psychological problems associated with infertility.

Assisted Reproductive Techniques (Assisted Reproductive Technologies – ART)

Used in the treatment of male infertility when pregnancy cannot be achieved naturally:

• Insemination (IUI – Intrauterine Insemination): The procedure of placing prepared sperm directly into the uterus.
• In Vitro Fertilization (IVF): Fertilization of eggs and sperm in the laboratory environment and transfer of the resulting embryo into the mother’s uterus.
• Microinjection (ICSI – Intra-Cytoplasmic Sperm Injection): Injection of a single sperm cell directly into the egg. It is used especially in cases where sperm count or motility is very low.

Andrology Tips for Protecting Male Health

It is important for men to be proactive in order to protect their general health and reproductive potential. Andrology provides guiding information on this subject.

Regular Health Check-Ups

• Annual General Examinations: Important for monitoring general health status and early diagnosis of possible diseases.
• Prostate Health Screening: Men over the age of 50 (or those with risk factors at an earlier age) are recommended to have regular PSA tests and rectal examinations.
• Sexual Health Evaluation: A doctor should be consulted in case of any changes or concerns in sexual functions.

Healthy Lifestyle Habits

• Balanced Nutrition: Adopt a diet containing plenty of fruits, vegetables, whole grains, and protein. Avoid processed foods, excessive sugar, and saturated fats. Antioxidants (especially zinc and selenium) are important for sperm health.
• Physical Activity: Do at least 150 minutes of moderate-intensity aerobic exercise per week. Weight training also supports muscle mass and general health.
• Weight Management: Maintaining ideal body weight positively affects hormonal balance and reproductive functions.
• Smoking and Alcohol: Avoid smoking and excessive alcohol consumption. These habits reduce sperm quality and may lead to sexual dysfunctions.
• Adequate Sleep: 7–8 hours of quality sleep per day is necessary for hormonal balance and general health.
• Stress Management: Manage stress with methods such as yoga, meditation, hobbies, or therapy.

Protection of Reproductive Health

• Safe Sexual Intercourse: Use condoms to protect against sexually transmitted infections (STIs). STIs may lead to infertility.
• Protect the Testes: Avoid trauma to the testes. Take protective measures when cycling or riding a motorcycle. Avoid very hot environments (sauna, hot tub) for long periods, because this may negatively affect sperm production.
• Conditions with Infertility Risk: Discuss options such as sperm freezing (sperm banking) with your doctor before chemotherapy or radiotherapy.

Being Conscious and Communicating with the Doctor

• Learn About Male Health: Know your body and be informed about possible problems.
• Take Your Complaints Seriously: Do not ignore changes in reproductive or sexual functions. Early diagnosis and treatment allow you to achieve better results.
• Communicate Openly with Your Doctor: Share all your concerns with your doctor without feeling shy or embarrassed.