Blemishes, Limb Counts, and Bodily Integrity in Halacha

The Rambam establishes precise definitions for manual deformities in priests and rules on how extra limbs affect ritual corpse impurity.

Deformities of the Hands and Feet

The Mishnah on Bekhorot 45a details disqualifying physical blemishes of the hands and feet for priests entering the Sanctuary. It addresses an extra digit, fingers that are joined together, and an ambidextrous priest. The Gemara derives these blemishes through biblical expositions regarding a broken hand or foot.

The Rambam codifies these physical flaws systematically in the Mishneh Torah. He rules that an extra digit disqualifies even if one possesses six digits symmetrically on both hands and feet. If an extra finger is amputated, the priest becomes fit only if it had no bone. If it contained a bone, he remains permanently disqualified because he is considered lacking an essential limb.

The Kessef Mishneh explains that the Rambam follows the Sages against Rabbi Yehuda regarding twenty-four digits. Although the Gemara records Rabbi Yochanan qualifying the blemish to a digit aligned in the row of fingers, the Rambam rules generally. The Kessef Mishneh explains that according to the Rambam, even an aligned digit constitutes an obvious blemish.

מִי שֶׁיֵּשׁ בְּיָדוֹ אֶצְבַּע יְתֵרָה בְּאֶצְבְּעוֹת יָדָיו אֲפִלּוּ הָיוּ שֵׁשׁ וְשֵׁשׁ. וְאִם חָתַךְ אֶת הַיְתֵרָה כָּשֵׁר. וְאִם הָיָה בָּהּ עֶצֶם אֲפִלּוּ חֲתָכָהּ פָּסוּל.

One who has an extra finger on his hands, even if he has six and six; if he cut the extra one off he is acceptable, but if it contained a bone, even if he cut it off he is disqualified. (Mishneh Torah, Admission into the Sanctuary 8:11)

Dominance and Ambidexterity in Service

The Gemara discusses an איטר (left-handed person) and one who is שולט בשתי ידיו (ambidextrous). A baraita teaches that a left-handed or left-footed priest is disqualified from performing the Temple service. Rabbi Yehuda HaNasi disqualifies an ambidextrous priest, presuming weakness began in his right hand. The Sages rule that an ambidextrous priest is fit.

The Rambam rules that an איטר is disqualified from service, but an ambidextrous priest is fully valid. Kiryat Sefer notes that priestly service biblically mandates the right hand based on sacrificial verses. The Kessef Mishneh explains that halacha follows the Sages against Rabbi Yehuda HaNasi because strength developed in his left hand without diminishing the dexterity of his right.

הַשּׁוֹלֵט בִּשְׁתֵּי יָדָיו — רַבִּי פּוֹסֵל וַחֲכָמִים מַכְשִׁירִין. מָר סָבַר — כְּחִישׁוּתָא אַתְחִלָא בְּיָמִין, וּמָר סָבַר — בְּרִיּוּתָא אַתְחִלָא בִּשְׂמֹאל.

One who has control of both of his hands—Rabbi disqualifies and the Sages declare fit. One Master holds weakness began in the right, and one Master holds strength began in the left. (Bekhorot 45b:4)

Corpse Impurity and Severed Limbs

The Gemara investigates whether extra appendages severed from a corpse convey טומאה (ritual impurity). A boned extra finger transmits impurity through contact and carrying, but tent impurity depends on its alignment. The Gemara notes that our Sages decreed contact impurity on an unaligned finger. They deliberately omitted tent impurity to maintain an evident distinction, ensuring people will not burn תרומה (teruma) on rabbinic impurity.

The Rambam rules that an intact limb from a living person or corpse defiles by contact, carrying, and an אֹהֶל (tent). An extra finger containing bone without a nail defiles by ohel only if aligned on the hand. If it is not aligned, its impurity is solely rabbinic, imparting only contact and carrying defilement.

וּמִפְּנֵי מָה גָּזְרוּ טֻמְאָה עַל אֶצְבַּע שֶׁאֵינָהּ נִסְפֶּרֶת גְּזֵרָה מִשּׁוּם הַנִּסְפֶּרֶת. וְלָמָּה לֹא טִמְּאוּהָ בְּאֹהֶל עָשׂוּ לָהּ הֶכֵּר כְּדֵי לְהוֹדִיעַ שֶׁטֻּמְאָתָהּ מִדִּבְרֵיהֶם.

And why did they decree impurity on a finger that is not counted? As a safeguard because of the counted one. And why did they not defile it in a tent? They made a distinction to make known that its impurity is rabbinic. (Mishneh Torah, Defilement by a Corpse 2:7)

Standard Bone Counts and Anomalies

The Gemara cites a baraita establishing that the majority of bone count defiles in a tent. This majority is fixed at 125 bones based on the standard 248 limbs. Rava teaches that one follows the majority of human bodies regardless of personal physical deviations.

The Rambam codifies that an individual corpse lacking or possessing extra limbs still requires exactly 125 bones for majority count. However, an extra finger with a nail or an aligned position adds to the individual's count. Kiryat Sefer derives this rule from the verse regarding human bones.

The Gemara records that a woman possesses additional anatomical parts, yet Rav states these do not impart tent impurity. The Rambam counts 248 limbs in a man and 251 limbs in a woman. The Kessef Mishneh addresses the discrepancy with the Gemara's citation of 252 limbs. He explains that the Rambam views Rabbi Eliezer and Rabbi Yehoshua as disputing each other, while Rabbi Akiva adds a single limb, totaling 251. These unique limbs do not impart tent impurity because Torah law requires an anatomical feature common to all human beings.

Halachic Conclusions in Practice

In practical halacha, any structural alteration involving bone removal permanently disqualifies a priest from the Sanctuary. Only boneless tissue removals or webbed skin separations restore priestly eligibility. Equal strength in both hands remains completely acceptable for service.

Regarding purity laws, bare bones require a fixed standard of 125 bones for ohel defilement, following the standard human blueprint. Superfluous anatomical structures without nail or skeletal alignment convey only rabbinic contact defilement, ensuring consecrated items are never destroyed mistakenly.

The Rambam measures priestly fitness and corpse impurity against universal human anatomy, treating non-standard bony appendages with rigorous, nuanced classifications.

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