Nipple clamps

What are nipple clamps?

Nipple clamps (in Dutch: tepelklemmen) are clamps placed on the nipple that hold the pressure there, which reduces blood flow to the spot. Nipple clamps is the standard term for this tool. The pain comes in two waves: one when they go on and a second, usually heavier one, at the moment the clamp comes off.

Why nipple clamps hurt most when they come off

Because the color has to come back, and the nipple is the only play spot for which that phenomenon has a medical name of its own.

Thaís Gomes Moreira, Giovana Mamede Castro and Jucier Gonçalves Júnior sifted 438 articles down to nineteen usable ones for International Journal of Environmental Research and Public Health, together describing 29 patients. What they lay out is Raynaud’s phenomenon of the nipple: a reversible spasm of the small arteries, which also occurs in fingers, toes, nose and lips. First white. Then blue-purple, then red as the blood comes back. In 48.27 percent of those 29 patients it ran through all three colors, in 41.37 percent through two. And the sentence that matters: that three-color shift usually comes with pain, burning or other tingling.

The trigger in that literature is cold or stress in women who are breastfeeding, not a clamp. That a nipple clamp forces the same color sequence, and that the pain therefore sits on the return and not on the pinch, is my inference and is not in their article.

Where the Dutch word comes from

From the trade, and only later from the papers. The Woordenboek der Nederlandsche Taal has no entry at all for tepelklem, while tepel (nipple) has one and klem (clamp) has five. In the newspaper archive of the Koninklijke Bibliotheek there are 41 articles with tepelklemmen, and the oldest is Het Parool of 7 April 1986: a report from Amsterdam nightlife in which someone pulls “two nipple clamps from his trouser pocket”. Two years later a column in the same paper carries the word as its headline, about an American fact-checker who had to call a sex shop with the question “do you sell nipple clamps?” and then with the question of what they actually were.

What people get out of them

The appeal lies in the ratio between effort and effect: no technique is needed and the feeling is there at once. For the one wearing them, the gain is that something keeps happening while no one is doing anything, so during the waiting too. For the one putting them on, the power lies not in how hard but in how long. A nipple clamp has no build-up: it does what it does from the first second, and numbness is the sign to stop rather than to go on.

Where this fits on this site

If you want to experience this once without buying a box full of gear yourself, this is one of the things I bring along. What does and does not happen that evening we discuss well in advance; how that conversation goes is on the page about the BDSM date.

Sources

• Raynaud’s Phenomenon of the Nipple: Epidemiological, Clinical, Pathophysiological, and Therapeutic Characterization. Thaís Gomes Moreira, Giovana Mamede Castro & Jucier Gonçalves Júnior, International Journal of Environmental Research and Public Health 21(7), 849, 2024 (DOI 10.3390/ijerph21070849; PMID 39063426; first names and reference checked against Crossref). Systematic literature review over January 1992 to January 2024, in which nineteen of 438 articles remained, together describing 29 patients. Provides that Raynaud’s phenomenon rests on a reversible spasm of the arterioles and also occurs in the nipple, that the color shift runs from pale through blue-purple to red, that this shift was three-color in 48.27 percent and two-color in 41.37 percent, and that the three-color shift usually goes together with pain, burning or other paresthesia. The article is about women who are breastfeeding and about cold and stress as the trigger, not about clamps; the application above is my inference.
• tepelklem. Woordenboek der Nederlandsche Taal via the Geïntegreerde Taalbank of the Instituut voor de Nederlandse Taal. Zero results, with tepel (one) and klem (five) as a positive control. Provides that the word does not exist lexicographically in Dutch.
• Newspaper archive of the Koninklijke Bibliotheek. Queried via the SRU service on the newspaper-article collection. Provides 41 articles with tepelklemmen and seven with tepelklem. The four oldest were read word for word: Het Parool of 7 April 1986 (“Then he pulls two nipple clamps from his trouser pocket”), De Volkskrant of 11 February 1988 (a list of SM gear), Het Parool of 23 September 1988 (the column with Tepelklemmen as its headline) and NRC Handelsblad of 19 November 1990.

Related terms

Nipple clamps are the best-known application of clamps, the tool type where the models and the time limits are set out.

• amerikaantjes. The adjustable model, which lets you build up in steps.
• Alligator clamp. The model that is sharp right away, with a toothed jaw and a hard spring.
• Clover clamps. The heaviest model, which closes further the harder it is pulled.
• Weights. What gets hung from them, and why that makes the clock run faster.
• Breast torture. The broader play on breasts and nipples, with the tissue side included.
• Tit torture. The wider game where this tool actually sits at the lighter end in the research.