Emma Hilton Profile picture
Developmental biologist. Particularly abrasive. Niche internet micro celebrity. Personal account.

Apr 4, 2025, 8 tweets

This is the menstrual cycle.

Trans-identified males do not have one.

This is the uterus, from which we bleed.

Trans-identified males do not have one.

During a period, prostaglandins trigger uterine contractions, causing cramps.

Trans-identified males do not have them.

This is the ovary that contains eggs.

Trans-identified males do not have ovaries.

This is the ovarian cycle that controls progesterone and tells our uterus when to shed.

Trans-identified males do not have an ovarian cycle.

This is the HPO (hypothalamus-pituitary-ovary) axis that regulates the entire menstrual cycle.

Trans-identified males do not have a HPO axis.

Red, pink, orange, brown, black, clear, thick, thin, lumpy, smooth, stringy.

Trans-identified males do not have periods.

Period.

Footnote: I could not easily find real images of the diversity of menstrual bleeding. It’s all arty swirls or schematics. How are young girls (and women experiencing something unusual) supposed to be able to properly research?

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