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 is when someone with a typically female body has little to no genitallia. It is estimated to occur amongst 1 in ever 4,000 AFAB or CTF individuals, and many with this variation seek out surgical assistance later in life (if they weren't altered as an infant) since this isn't always the lack of genitals, and can instead be just very little build to ones genitals.

Labial Hypoplasia
Labial Hypoplasia is a subset of vaginal aplasia 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.

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

Micropenis
Micropenis is a term for one 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.

Cryptorchidism
Cryptorchidism is when someone with a typically male body is missing one or more testicle, or when one or more of the testicles have formed inside of the body rather than outside. There is currently no findable estimate of this occurence in AMAB or CTM births. One with this variation likely also has hypospadias.

Monorchidism
Monorchidism is a subset of cryptorchidism in which one only has a single testcicle. One with a singular testicle can still be functional enough to produce enough testosterone and sperm to induce pregnancy and fertility.

Microorchidism
Microorchidism is a subset to cryptorchidism in which one 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 while also including those with a typically female body (AFAB or CTF) who are born without a clitoris. 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 first flag was coined by Tumblr user idvault on January 17th of 2021. It has no confirmed meaning.

The alternate flag was created on April 29, 2021 by FANDOM user Ariathatsme. The meaning goes as follows: White for connection and being without, grey-pink for CTF individuals, grey-blue for CTM individuals, yellow for the intersex spectrum, and dark grey for lack of and abnormality/rarity.

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