Tumtum
טומטום
Tumtum is a category in rabbinic legal literature for a person whose sex cannot be determined, because the genitals are hidden, undeveloped or otherwise unreadable. The Hebrew means hidden, and the eleventh-century dictionary known as the Aruch derives the word from atum, sealed. Nothing about the category is a name anybody takes: it exists so that a system of gendered obligations can decide what to do with a person it cannot classify.
The word is absent from Scripture and abundant everywhere after it. The Reform rabbi Elliot Kukla counts it seventeen times in the Mishnah, twenty-three in the Tosefta, one hundred and nineteen in the Babylonian Talmud, twenty-two in the Jerusalem Talmud, and hundreds of times across midrash, commentary and halakhah. Those are counts of a word in a corpus, not counts of people, and the distinction runs through everything that can be said about the term.
What the classical description says
The standard account gives a tumtum a membrane of skin covering genitals that may be male or female. One variant has exposed testicles with the penis unexposed. While the skin remains, the person can be neither circumcised nor have sexual relations, and stands as a doubtful man and a doubtful woman at once. The status is not necessarily permanent: the Talmud records an adult tumtum from the town of Bairi whose covering skin was cut away, after which he was reclassified as a man and went on to father seven children. Whether such surgery is obligatory is a point the rabbis differ on.
The description does not correspond to any intersex condition recognised in medicine today, which is the first reason Intersex is a poor translation for it. A halakhic category built on what an examiner can see is asking a different question from a clinical taxonomy built on chromosomes, gonads and hormones, and the answers do not line up.
How the law treats a tumtum
Doubt, in this system, produces stringency rather than exemption. Because a tumtum might genuinely be a man or might genuinely be a woman, the laws binding on neither may be broken, so the strictest gender-dependent obligations apply. Positive commandments from which women are exempt are treated as binding. Tractate Zavim states that the tumtum and the androgynos carry the khumrot of both: where the law is harsher towards men they are treated as men, and where it is harsher towards women they are treated as women.
That stringency sits alongside exclusion. The opening mishnah of Chagigah lists those not obligated to appear at the Temple for the three pilgrimage festivals, and the tumtum appears in it with the androgynos, women, unemancipated slaves, minors, the deaf, the lame, the blind, the sick and the old. Only free adult men in good health carried the obligation, and the tumtum's place on that list is a statement about legal capacity rather than about worth.
Why scholars disagree about tumtum as gender
The Mishnah records Rabbi Meir holding that a tumtum is not a distinct gender at all but a state of doubt between the two: sometimes a man, sometimes a woman. That is the position traditional Judaism has taken, and the Chabad presentation of the material follows it. Against it, Kukla, who is transgender, presents the tumtum as one of six genders in classical Judaism alongside male, female, androgynos, aylonit and saris, and argues that the set demonstrates the Western binary is not universal.
The argument is not settled and both readings appear in current writing. What can be said in favour of a category rather than a doubt is that the physical definition generates a stable set of social duties, prohibitions and roles, and a bundle of duties attached to a defined class is close to what a gender role is. What can be said against it is that the rabbis themselves reasoned from the doubt outward, and that Rabbi Yose, who found the androgynos genuinely hard to place, regarded the tumtum as the easier of the two.
How tumtum differs from androgynos
The two are constantly grouped together and their halakhic consequences are not the same. An androgynos has both sets of genitals and is visible to the law; a tumtum has genitals the law cannot see. That difference in evidence rather than in anatomy is what drives them apart in the Babylonian Talmud's treatment. The rabbis also recognised change over a lifetime, in the aylonit, assigned female at birth and developing no secondary sexual characteristics, and in the saris, assigned male and developing none, whether through nature or through castration.
Outside the legal material the word carries a different weight. In tractate Yevamot, Rabbi Ammi holds that Abraham and Sarah were originally tumtumim and infertile, and were remade as a fertile husband and wife in old age, reading the passage in Isaiah about the rock from which they were hewn and the pit from which they were dug as a description of genitals being uncovered.
Where the word has travelled since
The legal literature carried the term into modern print in the ordinary way. Wiktionary's earliest quotation is from a 1949 printing of the Code of Maimonides, on the doubtful inheritance rights of a tumtum, and later citations include David Kraemer's Reading the Rabbis in 1996, Ruth Sandberg's Development and Discontinuity in Jewish Law in 2001, and the Encyclopedia of Jewish Medical Ethics in 2003, which states flatly that the term is not found in Scripture. In recent decades queer Jews and others have reread the rabbinic gender categories as a resource, which My Jewish Learning describes as a reclamation project rather than as the plain sense of the sources. English also has entirely unrelated tumtums: a drum from Antigua and Barbuda, a colloquial word for the stomach, a light carriage in colonial India, and the Tumtum tree in Lewis Carroll's Jabberwocky.
Told apart
Often confused with Tumtum
- AndrogynosThe adjacent rabbinic category and the one most often merged with this. An androgynos has both sets of genitals and is legible to the law; a tumtum has genitals the law cannot examine, and the rulings diverge on that basis rather than on anatomy.
- IntersexFrequently offered as the translation, and the classical description of a tumtum matches no intersex condition recognised in medicine today. The rabbinic category turns on what an examination cannot establish, which is not how clinical classification works.
- Third genderWhether the tumtum is a third category or a state of doubt between two is the live disagreement. Rabbi Meir's ruling in the Mishnah, followed by traditional Judaism, is that it is doubt; Elliot Kukla presents it as one of six genders in classical Judaism.
Common questions
Questions about טומטום
- What does tumtum mean?
- Hidden. The eleventh-century dictionary called the Aruch derives it from atum, sealed, and the classical description gives a tumtum a membrane of skin covering genitals that may be male or female.
- Did anyone in the Talmud call themselves a tumtum?
- No source in this entry's material records anyone doing so. The word is a ruling term used about a person by others, so that a system of gendered obligations can decide which duties apply. That is the main reason it does not map onto a modern identity label, whatever else can be said about it.
- How often does the word appear in rabbinic literature?
- Elliot Kukla counts seventeen occurrences in the Mishnah, twenty-three in the Tosefta, one hundred and nineteen in the Babylonian Talmud and twenty-two in the Jerusalem Talmud, with hundreds more across midrash, commentary and halakhah.
- Is a tumtum a third gender in Jewish law?
- That is disputed. The Mishnah records Rabbi Meir holding that a tumtum is a state of doubt between male and female rather than a category of its own, and traditional Judaism follows him. Elliot Kukla counts it as one of six genders in classical Judaism and argues from the set that the Western binary is not universal. Both readings are in print and neither has displaced the other.
- Could a tumtum's status change?
- Yes. The Talmud records an adult tumtum from Bairi who had the covering skin cut away, was reclassified as a man and later fathered seven children. Whether such surgery is required is a question the rabbis answer differently.
Added 2026-08-28 · Revised 2026-08-28
Nearby in the catalogue
Related entries
- AndrogynosA rabbinic category for a person with both sets of genitals, ruled like a man in some respects and like a woman in others. Greek word, Talmudic use.
- IntersexA fact about bodies that nearly every gender list files as an identity, and two prevalence figures thirty times apart from one source.
- Third genderThe comparative term for the gender positions outside man and woman, and why counting up to three is the part that its critics object to most.
- Akava'ineAn old Cook Islands word carrying a much newer identity, shaped by Polynesian communities in Auckland and carried back to Rarotonga.