Agenital

Agenital is a term for a rare intersex trait under the teresex umbrella in which one is born without visible genitals or without parts of ones genitals, due to being abnormally closed, underdeveloped, or absent (genital aplasia). The variation does not usually occur by itself, but is usually coupled with other intersex variations.

It may or may not be coupled with gonadal agenesis, gonadal dysgenesis, and/or secondary sex agenesis. The opposite of this variation is macrogenital.

Subsets of this variation are listed and written out below.

Vaginal aplasia
Vaginal aplasia or vaginal agenesis is when someone with a female-like body has little to no genitallia. It is estimated to occur amongst 1 in every 4,000 AFAB or CTF individuals, and many with this variation seek out surgical change later in life (if they weren't altered as an infant.)

Vaginal hypoplasia
Vaginal hypoplasia is a term for when someone with a female-like body has an underdeveloped vagina. It typically causes little issue, as sexual activity with the vagina is still possible, even if its undersized or underdeveloped.

Labial Hypoplasia
Labial Hypoplasia is a subset of vaginal hypoplasia in which one is missing one or both labia. It is generally not an issue, as the labia are not essential to urination or sexual activity.

Clitoral Hypoplasia
Clitoral Hypoplasia is a subset of vaginal hypoplasia in which one has an underdeveloped or small clitoris. It typically causes little issue, as sexual activity with the clitoris is still possible, even if its undersized or underdeveloped.

Clitoral Aplasia
Clitoral Aplasia is a subset of vaginal hypoplasia in which one does not develop a clitoris. It typically causes little issue in daily life, however it may cause issues within sexual activity.

Penile Agenesis
Penile agenesis or penile aplasia is a term for when someone with a male-like body has no genitallia. This is estimated to occur in between 20 and 30 million AMAB or CTM births. One with this variation almost always needs to have surgical intervention, as they usually have no urinary outlet.

Penile Hypoplasia
Penile hypoplasia is a term for when someone with a male-like body has an underdeveloped penis. It typically causes little issue, as sexual activity with the penis is still possible, even if its undersized or underdeveloped.

Micropenis
Micropenis is a term for when one with a male-like body who has an unusually small penis, usually due to another intersex trait, however this is not always the case. This effects about 0.6% AMAB or CTM individuals. This may be considered a subset of ambiguous genitallia in some cases, and may overlap with clitoromegaly. It typically causes little issue, as sexual activity with the penis is still possible, even if its smaller than expected.

Cryptorchidism
Cryptorchidism is a term for when one with a male-like body is missing one or more testicle, or when one or more of the testicles have formed fully within the body rather than outside. There is currently no findable estimate of this occurrence in AMAB or CTM births. One with this variation likely also has hypospadias.

Monorchidism is a term for when one with a male-like body has a single testicle. They are typically fertile, as their single testicle is usually functioning.

Microorchidism
Microorchidism is a term for when one with a male-like body has unusually small testicles. One with this variation typically has a lack of masculine horomones released due to the decreased size and functionality, which often leads one to have more feminized traits.

Aphallia
Aphallia is a term for someone who is born without a phallis. This includes penile agenesis and clitoral aplasia. It is a rare variation with very little reports, however this is likely due to fear of stigmatization, since intersex variations are often looked at in a negative way.

Urethral Agenesis
Urethral Agenesis is a term for someone who is born without a urethra. This can effect both CTM and CTF people, and may be a partnered variations with other forms of agenital.

Those with this variation may or may not be born without a bladder as well (bladder agenesis.) Surgical intervention is often needed, otherwise the urine may come out of the anal area instead, possibly causing many medical issues.

Other Definitions
Agenital is sometimes used interchangeably with angenital, which is an altersex identity in which one desires to be without genitals.

It is occasionally used to refer to asexuals who are repulsed by genitalia but are not necessarily not devoid of sexual feelings or repulsed by other sexual acts that do not primarily involve genitals.

Agenital-partnering syndromes/traits

 * 17-AH Deficiency (for CTM people)
 * 17-KSR Deficiency (for CTM people)
 * 45,X/46,XY Mosaicism (for CTM people)
 * 49,XXXXY Syndrome (for CTM people)
 * Aarskog-Scott Syndrome (for CTM people)
 * Ablepharon Macrostomia Syndrome (for both CTM and CTF people)
 * Androgen Resistance (for CTM people)
 * Antley-Bixler Syndrome (for both CTM and CTF people)
 * Aromatase Deficiency (for both CTM and CTF people)
 * Aromatase Excess Syndrome (for CTM people)
 * ATR-16 Syndrome (for CTM people)
 * CHARGE Syndrome (for CTM people)
 * Chromosome 18 Ring (for both CTM and CTF people)
 * De La Chapelle Syndrome (for CTM people)
 * Denys-Drash Syndrome (for CTM people)
 * Estrogen Resistance (for CTM people)
 * Gonadal Agenesis (for both CTM and CTF people)
 * Hypospadias (for CTM people)
 * Kallman Syndrome (for CTM people)
 * Klinefelter Syndrome (for CTM people)
 * Leydig Cell Hypoplasia (for CTM people)
 * MDP Syndrome (for CTM people)
 * Müllerian Agenesis (for CTF people)
 * Nonclassical Congenital Adrenal Hyperplasia (for CTM people)
 * Opitz G/BBB Syndrome (for CTM people)
 * Penoscrotal Transposition (for CTM people)
 * PMDS (for CTM people)
 * Poland Syndrome (for CTM people)
 * PPSH (for CTM people)
 * Prader–Willi Syndrome (for both CTM and CTF people)
 * SCARF Syndrome (for CTM people)
 * Seaver Cassidy Syndrome (for CTM people)
 * SERKAL Syndrome (for CTM people)
 * WNT4 Deficiency (for CTF people)
 * XXXYY Syndrome
 * XXYY Syndrome (for CTF people)

Flags
The flag was coined by Tumblr user idvault on January 17th of 2021. It has no confirmed meaning.

Resources

 * https://www.sciencedirect.com/topics/medicine-and-dentistry/vagina-aplasia
 * https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6485865/
 * https://en.wikipedia.org/wiki/Aphallia
 * https://en.wikipedia.org/wiki/Penile_agenesis_and_testicular_agenesis
 * https://en.wikipedia.org/wiki/Cryptorchidism
 * https://en.wikipedia.org/wiki/Monorchism
 * https://en.wikipedia.org/wiki/Micropenis
 * https://en.wikipedia.org/wiki/Microorchidism
 * https://radiopaedia.org/articles/urethral-agenesis?lang=us
 * https://link.springer.com/chapter/10.1007/978-3-319-43310-3_23
 * https://www.hindawi.com/journals/au/2020/2782783/
 * https://varsex-pride.tumblr.com/post/640569385405349888
 * https://www.jpagonline.org/article/S1083-3188%2805%2900165-8/fulltext
 * https://medical-dictionary.thefreedictionary.com/penile+hypoplasia#:~:text=Abnormally%20small%20penis.,adult%2C%207%20cm%20or%20less