Total 10 clinical symptoms reported for 3-Oxo-5 alpha-steroid delta 4-dehydrogenase deficiency  Very Frequent (10)

Abnormality of the endocrine system	An abnormality of the endocrine system.	Very frequent
Ambiguous genitalia	A genital phenotype that is not clearly assignable to a single gender. Ambiguous genitalia can be evaluated using the Prader scale: Prader 0: Normal female external genitalia. Prader 1: Female external genitalia with clitoromegaly. Prader 2: Clitoromegaly with partial labial fusion forming a funnel-shaped urogenital sinus. Prader 3: Increased phallic enlargement. Complete labioscrotal fusion forming a urogenital sinus with a single opening. Prader 4: Complete scrotal fusion with urogenital opening at the base or on the shaft of the phallus. Prader 5: Normal male external genitalia. The diagnosis of ambiguous genitalia is made for Prader 1-4.   Synonyms:Ambiguous external genitalia; Ambiguous external genitalia at birth; Intersex genitalia	Very frequent
Ambiguous genitalia, male	Ambiguous genitalia in an individual with XY genetic gender.   Synonyms:Ambiguous genitalia in males	Very frequent
Bifid scrotum	Midline indentation or cleft of the scrotum.   Synonyms:Cleft of scrotum; Scrotal cleft	Very frequent
Cryptorchidism	Testis in inguinal canal. That is, absence of one or both testes from the scrotum owing to failure of the testis or testes to descend through the inguinal canal to the scrotum.   Synonyms:Cryptorchism; Undescended testes; Undescended testis	Very frequent
Decreased fertility	Synonyms:Abnormal fertility; Decreased fertility	Very frequent
Hypoplasia of penis	Synonyms:Underdeveloped penis	Very frequent
Perineal hypospadias	Hypospadias with location of the urethral meatus in the perineal region.	Very frequent
Small scrotum	Apparently small scrotum for age.   Synonyms:Hypoplastic scrotum; Scrotal hypoplasia; Smaller than typical growth of scrotum; Underdeveloped scrotum	Very frequent
Urogenital sinus anomaly	A rare birth defect in women where the urethra and vagina both open into a common channel.	Very frequent