וְאִשָּׁה֙ כִּֽי־תִהְיֶ֣ה זָבָ֔ה דָּ֛ם יִהְיֶ֥ה זֹבָ֖הּ בִּבְשָׂרָ֑הּ שִׁבְעַ֤ת יָמִים֙ תִּהְיֶ֣ה בְנִדָּתָ֔הּ וְכָל־הַנֹּגֵ֥עַ בָּ֖הּ יִטְמָ֥א עַד־הָעָֽרֶב׃
At kapag ang isang babae ay may lumalabas na agos, at dugo ang kanyang agos mula sa kanyang laman, pitong araw siyang mananatili sa kanyang pagkahiwalay; at sinumang humipo sa kanya ay magiging marumi hanggang sa gabi.
Rashi
כי תהיה זבה AND IF A WOMAN HAVE AN ISSUE — One might think that this means: if there be an, issue from any limb of her body (e. g. ear, nose)! It, however, states in a law referring to this matter, (Leviticus 20:18) “and she hath uncovered the fountain of her blood” — only that issue of blood therefore makes her unclean which comes from her fountain (Sifra, Metzora Parashat Zavim, Section 4 2).
Ibn Ezra
Having discussed matters that pertain to men, Scripture now turns to discuss matters that pertain to women.
Rashbam
דם יהיה זובה, the reddish colour causes the ritual impurity here, not the whitish colour, suggesting seminal fluid.