shifonur
🏥kliniki*

Anorchism and monorchism: when the testicle is absent

Other names: Анорхизм, монорхизм, отсутствие яичка, одно яичко у ребёнка, агенезия яичка, пустая мошонка у мальчика

Monorchism is a condition in which a man has only one testicle, anorchism is when the testicles are completely absent. The cause may be a violation of the laying of the organ in the prenatal period or its death due to vascular torsion even before birth. It is important to distinguish these conditions from cryptorchidism, in which the testicle exists, but has not descended into the scrotum and is located in the groin or abdominal cavity - such a testicle must be found and brought down. With monorchidism, a single healthy testicle usually fully provides both hormones and sperm production. Anorchism requires lifelong replacement therapy, which is selected by an endocrinologist and urologist.

🧾 МКБ-10: Q55.0 🏥 Where it is treated: 10 An empty scrotum is not always anorchismOne testicle is often enoughNeed to search for a testicle in the groin
👨‍⚕️ Which doctor
Pediatric urologist, andrologist, endocrinologist
🔬 Diagnostics
Ultrasound of the scrotum and groin areas, testosterone, FSH, LH, if necessary - laparoscopy
💊 Treatment
Observation for monorchism, replacement therapy for anorchism, prosthetics if desired
📈 Prognosis
With monorchism, favorable; anorchism requires lifelong therapy
⚠️ At risk
Testicular torsion in utero, developmental disorders, genetic factors
⏱ When to see a doctor
Planned

🚨 See a doctor urgently

With these signs do not wait for a scheduled appointment — the condition requires emergency care.

  • Пустая мошонка у новорождённого или ребёнка старше 6 месяцев
  • Яичко периодически пропадает и не опускается самостоятельно
  • Отсутствие признаков полового созревания у подростка к 14 годам
  • Внезапная сильная боль в единственном яичке — возможен перекрут
  • Плотное безболезненное образование в единственном яичке
  • Сочетание пустой мошонки с необычным строением наружных половых органов

Why there may be no testicle

The testicles are laid in the abdominal cavity and usually descend into the scrotum by the time of birth. If the formation process is disrupted at an early stage, the organ does not develop at all. Another mechanism is much more common: the testicle formed normally, but in the prenatal period, torsion of its vessels occurred, the blood supply stopped, and the organ died. In such cases, only a small remnant of tissue is found during surgery. True bilateral anorchism is very rare and is accompanied by a lack of intrinsic testosterone.

  • Violation of organ laying in early pregnancy
  • Intrauterine torsion of testicular vessels
  • Vanishing testicle syndrome
  • Chromosomal and hormonal developmental disorders
  • Sometimes - a consequence of surgery or trauma in childhood

How is it different from cryptorchidism?

This is the most important question on which tactics depend. In cryptorchidism, the testicle exists, but is delayed on its way to the scrotum. It needs to be detected and removed surgically, preferably in the first or second year of life: this reduces the risk of infertility and malignant tumor. With anorchism there is nothing to omit, but the absence of an organ can only be confirmed after a thorough search, including diagnostic laparoscopy. Therefore, the diagnosis of “no testicle” is not made based on ultrasound alone.

  • Cryptorchidism - there is a testicle, but not in the scrotum
  • Testicular retraction in children is a normal variant; the testicle descends when it relaxes
  • Anorchism is confirmed by hormonal tests and examination of the abdominal cavity
  • Undescended testicle requires surgery
  • A testicle left in the abdominal cavity increases the risk of tumors

How does it affect hormones and fertility?

One healthy testicle can produce enough testosterone and sperm, so most men with monorchidism develop normally and can have children. However, their sperm quality is, on average, somewhat lower, and when planning a pregnancy, it is wise to have a spermogram done. With anorchism, one's own testosterone is not produced: without treatment, puberty does not occur, and osteoporosis and other consequences of hormone deficiency develop in adulthood. Natural conception in this case is impossible.

  • Monorchidism - usually normal hormones
  • Possible moderate decrease in sperm count
  • Anorchism - lack of own testosterone
  • Puberty does not occur without therapy
  • Replacement therapy ensures normal development and quality of life

Survey

They begin with an examination: the doctor carefully palpates the scrotum and inguinal canal in a warm room to prevent retraction of the testicle. Then an ultrasound scan of the scrotum and groin areas is performed. A hormonal study helps to understand whether the body has working testicular tissue: in its absence, the levels of FSH and LH are elevated, and testosterone is low. In doubtful cases, stimulation tests are used in children. The final answer for a non-palpable testicle is given by diagnostic laparoscopy, which, when an organ is detected, immediately goes into treatment.

  • Examination by a pediatric urologist or andrologist
  • Ultrasound of the scrotum and inguinal canals
  • Testosterone, FSH, LH
  • Stimulation tests as prescribed by an endocrinologist
  • Karyotyping for combined anomalies
  • Diagnostic laparoscopy for a non-palpable testicle

What do they do next?

With monorchidism, no special treatment is required, but the only testicle must be protected: protection during contact sports and immediate consultation with a doctor in case of any acute pain in the scrotum are important, since torsion in this situation is especially dangerous. For anorchism, the endocrinologist selects testosterone replacement therapy, starting it in adolescence, to ensure normal sexual development. At the request of the patient, it is possible to install a silicone testicular prosthesis - this is a cosmetic operation and does not affect hormones.

  • Regular observation by a urologist
  • Protecting the single testicle during sports
  • Immediate treatment for acute scrotal pain
  • Testosterone replacement therapy for anorchism
  • Spermogram when planning pregnancy
  • Testicular replacement if desired
  • Psychological support for a teenager if necessary

Services and prices for this diagnosis

Based on official price lists of Tashkent clinics. The exact cost is determined after examination.

Frequently asked questions: Anorchism and Monorchism

Is it possible to have children with one testicle?+
In most cases, yes. One healthy testicle usually provides sufficient testosterone and sperm production. When planning a pregnancy, it is worth taking a spermogram to objectively assess the indicators and, if necessary, discuss them with an andrologist.
My son doesn’t have a testicle in his scrotum—is this anorchism?+
Not always. More often, the testicle is located in the inguinal canal or is retracted due to a muscle reflex. An examination by a pediatric urologist and an ultrasound are needed. If the testicle is not found, a hormonal examination is performed, and, if necessary, laparoscopy.
Is surgery necessary for monorchism?+
The absence of one testicle in itself does not require surgery. Intervention is necessary if the second testicle has not descended, and also, if desired, to install a prosthesis. The decision is made together with the urologist, taking into account age.
Does anorchism affect your appearance and voice?+
Without treatment, testosterone deficiency delays puberty: the voice does not change, muscles and hair development are weak. Timely initiation of replacement therapy allows you to go through this stage normally, so you need to contact an endocrinologist in adolescence.
Is sports dangerous if you have one testicle?+
You can play sports, but in contact and traumatic sports it is recommended to use groin protection. Any acute pain or injury to the scrotum is a reason to urgently consult a doctor so as not to lose the only organ.

The information on this page is for reference only and does not replace a doctor consultation. Only a qualified specialist can make a diagnosis and prescribe treatment after an in-person examination.

Where it is treated anorchism and monorchism в Ташкенте

Определить, отсутствует ли яичко или оно просто не опустилось, можно только при осмотре и УЗИ у детского уролога или андролога. Clinics Ташкента, где принимают эти специалисты:

Tashkent, Uchtepa district, Chilanzar 12 apt., st. M. Shaykhzoda, 7
M Olmazor 🚶 1.2 km
M Chilonzor 🚶 1.7 km
M Mirzo Ulug'bek 🚶 2.5 km
🚌 Nearest bus stop 🚶 260 m · buses: 8, 41
Mon–Fri:08:30–17:00
Closed now
Tashkent, Учтепинский district, Chilonzor 12 block, st. М.Шайхзода, 7
M Olmazor 🚶 1.2 km
M Chilonzor 🚶 1.7 km
M Mirzo Ulug'bek 🚶 2.5 km
🚌 Nearest bus stop 🚶 310 m · buses: 8, 41
Mon–Fri:08:30–17:00
Closed now
st. Mirzaeva 50, Yunusabad 17, Yunusabad district, Tashkent Landmark: opposite the Nazar M...
M Turkiston 🚶 1.5 km
M Yunusobod 🚶 2.0 km
M Shahriston 🚶 2.8 km
🚌 Nearest bus stop 🚶 100 m · buses: 7
Mon–Fri:09:00–18:00
Closed now
Mukimiy street 144/1, Chilanzar district, Tashkent Landmarks: Novza metro station (former...
M Novza 🚶 400 m
M Mirzo Ulug'bek 🚶 650 m
M Milliy bog' 🚶 1.3 km
🚌 Nearest bus stop 🚶 170 m · buses: 9Т, 56
Mon–Fri:09:00–18:00
Closed now
Branch No. 3: Birlashgan street, opposite the 4-City Clinical Hospital
M Tuzel 🚶 750 m
M Yashnobod 🚶 800 m
M Texnopark 🚶 1.4 km
🚌 Nearest bus stop 🚶 200 m · buses: 22
Пн–Sat:07:00–20:00
Closed now
Tashkent, Mirabad district, st. Oybek, 34d
M Toshkent 🚶 550 m
M Oybek 🚶 850 m
M Kosmonavtlar 🚶 1.3 km
🚌 Nearest bus stop 🚶 150 m · buses: 22
st. Magtymguly 105 (formerly Tarakkiyot), Yashnabad district, Tashkent Landmark: old TashM...
M Hamid Olimjon 🚶 1.5 km
M Mashinasozlar 🚶 1.5 km
M Ming O'rik 🚶 1.7 km
🚌 Nearest bus stop 🚶 240 m · buses: 14
Mon–Fri:08:00–18:00
Closed now
Tashkent, Olmazar Tumani, Kichik Khalka Yuli 5 "A" y
M Beruniy 🚶 500 m
M Tinchlik 🚶 1.1 km
M Chorsu 🚶 2.9 km
🚌 Nearest bus stop 🚶 190 m · buses: 31, 34
Mon–Fri:08:30–17:00
Closed now
Tashkent, Uchtepa district, Foziltepa street, 14th block, 28 A
M Chilonzor 🚶 2.3 km
M Mirzo Ulug'bek 🚶 2.3 km
M Novza 🚶 2.7 km
🚌 Nearest bus stop 🚶 180 m · buses: 13, 33
Mon–Fri:09:00–18:00
Closed now
Tashkent, Uchtepa district, st. Khojaeva, 1d Landmark: Medical Academy of Tashkent
🚌 Nearest bus stop 🚶 160 m · buses: 31
Mon–Fri:09:00–17:00
Closed now

ICD-10 code

Official international classification codes — these are used in medical records and statistics.

Other diseases: Andrology

Book