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  2. Bulbourethral gland - Wikipedia

    en.wikipedia.org/wiki/Bulbourethral_gland

    According to one preliminary study, the bulbourethral gland fluid might not contain any sperm, [10] whereas another study showed some men did leak sperm in potentially significant quantities (in a range from low counts up to 50 million sperm per ml) into the pre-ejaculatory fluid, [9] potentially leading to conception from the introduction of ...

  3. Mild androgen insensitivity syndrome - Wikipedia

    en.wikipedia.org/wiki/Mild_androgen...

    Mild androgen insensitivity syndrome (MAIS) is an intersex variation that results in a mild impairment of the cell's ability to respond to androgens. [1] [2] [3] The degree of impairment is sufficient to impair spermatogenesis and / or the development of secondary sexual characteristics at puberty in males, but does not affect genital differentiation or development.

  4. Spermatogenesis - Wikipedia

    en.wikipedia.org/wiki/Spermatogenesis

    The process of spermatogenesis as the cells progress from primary spermatocytes, to secondary spermatocytes, to spermatids, to Sperm Cycle of the seminiferous epithelium of the testis. Spermatocytogenesis is the male form of gametocytogenesis and results in the formation of spermatocytes possessing half the normal complement of genetic material.

  5. Spermarche - Wikipedia

    en.wikipedia.org/wiki/Spermarche

    Spermarche, also known as semenarche, is the time at which a male experiences his first ejaculation. [1] It is considered to be the counterpart of menarche in females. [2] [3] Depending on upbringing, cultural differences, and prior sexual knowledge, males may have different reactions to spermarche, ranging from fear to excitement. [4]

  6. Male infertility - Wikipedia

    en.wikipedia.org/wiki/Male_infertility

    Male infertility can wholly or partially account for 40% of infertility among couples who are trying to have children. [2] It affects approximately 7% of all men. [3] Male infertility is commonly due to deficiencies in the semen, and semen quality is used as a surrogate measure of male fecundity. [4]

  7. Klinefelter syndrome - Wikipedia

    en.wikipedia.org/wiki/Klinefelter_syndrome

    The rate of Klinefelter syndrome among infertile males is 3.1%. The syndrome is the main cause of male hypogonadism. [68] One survey in the United Kingdom found that the majority of people with KS identify as male, however, a significant number have a different gender identity. [69] The prevalence of KS is higher than expected in transgender ...

  8. Androgen deficiency - Wikipedia

    en.wikipedia.org/wiki/Androgen_deficiency

    Symptoms of the condition in males consist of loss of libido, impotence, infertility, shrinkage of the testicles, penis, and prostate, diminished masculinization (e.g., decreased facial and body hair growth), low muscle mass, anxiety, depression, fatigue, vasomotor symptoms (hot flashes), insomnia, headaches, cardiomyopathy and osteoporosis.

  9. Spermatogenesis arrest - Wikipedia

    en.wikipedia.org/wiki/Spermatogenesis_arrest

    Histopathology of various spermatogenesis disorders. Spermatogenesis arrest is known as the interruption of germinal cells of specific cellular type, which elicits an altered spermatozoa formation. Spermatogenic arrest is usually due to genetic factors resulting in irreversible azoospermia. However some cases may be consecutive to hormonal ...