Tazria, Thazria, Thazri’a, Sazria, or Ki Tazria’ (תַזְרִיעַ — Hebrew for “she conceives,” the 13th word, and the first distinctive word, in the parashah) is the 27th weekly Torah portion (פָּרָשָׁה, parashah) in the annual Jewish cycle of Torah reading and the fourth in the book of Leviticus. It constitutes Leviticus 12:1–13:59. The parashah is made up of 3,667 Hebrew letters, 1,010 Hebrew words, and 67 verses, and can occupy about 128 lines in a Torah Scroll (סֵפֶר תּוֹרָה, Sefer Torah).
Jews in the Diaspora read it the 27th or 28th Sabbath after Simchat Torah, generally in April. The lunisolar Hebrew calendar contains up to 55 weeks, the exact number varying between 50 in common years and 54 or 55 in leap years. In leap years (for example, 2014 and 2016), parashah Tazria is read separately. In common years (for example, 2013, 2015, 2017, and 2018), parashah Tazria is combined with the next parashah, Metzora, to help achieve the number of weekly readings needed.
Read more about Tazria: Readings, In Classical Rabbinic Interpretation, In The Liturgy, The Weekly Maqam