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46 Xy Partial Gonadal Dysgenesis C4510744

Published: July 22, 2026Updated: August 20, 2026

A genetic condition where XY individuals have underdeveloped gonads causing atypical genital development and possible hormone deficiencies. Care is individualized, often involving hormone therapy and surgical options.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
Q55.9
ICD-11
LA00.0
Body system
reproductive
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Gonadoblastoma

Benign or malignant tumor developing in dysgenic gonads, often calcified and detectable on imaging.

URGENT: Any pelvic pain, palpable mass, or rapid onset of masculine features requires immediate evaluation for possible tumor.

!

Gonadal tumor risk

Increased lifetime risk of malignant germ cell tumors (including dysgerminoma and seminoma) in streak gonads.

URGENT: Regular screening with ultrasound recommended; report any abdominal/pelvic pain, swelling, or hormonal changes immediately.

Ambiguous genitalia

(reproductive)

External genitalia that appear neither clearly male nor clearly female due to incomplete male genital development.

Frequency: 70-80% of patients

Hypospadias

(reproductive)

Urethral opening on the underside of the penis instead of the tip, often associated with chordee (curved penis).

Frequency: 60-70% of patients

Cryptorchidism

(reproductive)

One or both testes fail to descend into the scrotum, remaining in the abdomen or inguinal canal.

Frequency: 50-60% of patients

Primary amenorrhea

(reproductive)

Failure to begin menstruation by age 15 or within 3 years of secondary sexual characteristic development.

Frequency: 40-50% of patients

Delayed puberty

(reproductive)

Absence of secondary sexual characteristics (breast development, menstruation in females; testicular enlargement, voice changes in males) by expected age.

Frequency: 40-50% of patients

Primary infertility

(reproductive)

Inability to conceive naturally due to gonadal dysfunction and impaired gamete production.

Frequency: 60-70% of patients

Short stature

(constitutional)

Height below expected range for age and genetic background, often becoming apparent in childhood.

Frequency: 15-25% of patients

Hypertension

(cardiovascular)

Elevated blood pressure, potentially related to renal abnormalities that may accompany gonadal dysgenesis.

Frequency: 10-15% of patients

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Combination drug regimen with regular assessment

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
2

Hormone Replacement Therapy

Individualized hormone replacement based on assigned gender, phenotypic presentation, and endogenous hormone production to support development and metabolic function.

medication
3

Endocrine and Oncologic Surveillance

Regular monitoring of hormone levels, bone density, and gonadal tissue for malignancy risk through imaging and tumor markers.

monitoring

Additional treatment options

Gonadal Management Surgery

Surgical intervention for gonadal tissue management including removal of streak gonads or undescended tissue, and gender-affirming genital reconstruction as indicated.

surgical

Psychological Counseling and Support

Comprehensive psychological support addressing gender identity, body image, and adjustment to diagnosis, with involvement of family when appropriate.

psychological

Healthy Lifestyle Support

Guidance on nutrition, exercise, and general health maintenance to support bone health, cardiovascular wellness, and psychological well-being.

lifestyle

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is 46 Xy Partial Gonadal Dysgenesis C4510744?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Lee PA, Houk CP, Ahmed SF, Hughes IA. Consensus statement on management of intersex disorders. International Consensus Conference on Intersex. Pediatrics. 2006;118(2):e488-e500.

guideline2006View source →
2

Endocrine Society. Endocrine Society position statement: 46,XY disorders of sex development. J Clin Endocrinol Metab. 2008;93(10):ix-x.

position_statement2008
3

Mendoza N, Motohara-Matsuo K, Castro MJ, Nishi MY, Bachega TA, Spinola-Castro AM, Domenice S, Latronico AC, Mendonca BB. 46,XY disorders of sexual development: insights into pathophysiology and treatment. Endocrine. 2023;79(3):491-506.

review2023View source →
4

Miller WL, Achermann JC. Disorders of sex development. In: Melmed S, et al. Williams Textbook of Endocrinology. 14th ed. Elsevier; 2020:901-968.

textbook2020
5

Ostrer H. Disorders of sex development (DSD): should we change the name to differentiate XY DSD from other DSD? Sex Dev. 2019;13(2):65-73.

review2019View source →
6

Kulle A, Kragesteen L, Sutter C, Holterhus PM. The molecular diagnosis of 46,XY disorders of sex development: experience from a reference center. J Clin Endocrinol Metab. 2022;107(3):785-795.

clinical_trial2022View source →
7

European Society for Pediatric Endocrinology. ESPE Consensus Guidelines on Disorders of Sex Development. J Pediatr Endocrinol Metab. 2020;33(9):1051-1064.

guideline2020View source →
8

Hughes IA. Disorders of sex development: a spectrum of presentation. Ann Endocrinol (Paris). 2021;82(3-4):153-157.

review2021View source →
9

Baxter RM, Vilain E. Understanding gonadal dysgenesis in 46,XY individuals: genetic basis and clinical implications. Ann Endocrinol (Paris). 2023;84(2):201-210.

10

Speiser PW, Arlt W, Auchus RJ, Baskin LS, Conway GS, Merke DP, Meyer-Bahlburg HFL, Miller WL, Migeon CJ, New MI. Congenital adrenal hyperplasia due to 46,XY adrenal dysgenesis: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab. 2018;103(11):4043-4067.

consensus2018View source →

Medication Comparisons

Compare medications used to treat 46 Xy Partial Gonadal Dysgenesis C4510744. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy