Is KY or Vaseline better to lubricate the rectal thermometer

I prefer Vaseline for nostalgia’s sake and because the thermometer doesn’t slide out like it does with KY. My wife just bought us a digital thermometer, however, and the instructions say to use a water-based lube for rectal use, so when we use it we use KY or astroglide.

Coconut oil or KY is technically less likely to interfere with a reading.

But Vaseline leaves that slightly humiliating slickness behind.

I always use KY for rectal temps and rectal and vaginal examinations. It makes everything nice and slippery and makes penetration comfortable for the patient. And it cleans off from the clothes or body easily without fuss.

For those under 50, you're probably too young to remember that Vaseline was pretty much the only lube available back in the day. Water-based lubes replaced it, and the main advantage is easy cleanup. KY jelly, is too clinical for me. I personally prefer Vaseline, for the way it stays on the thermometer, and kind of drips off after you take it out. You can almost tell if there's a fever, based on the amount of melting that takes place. My former gf had a temp. of 102, with the flu, and the Vaseline was almost like melted butter, when I took the thermometer out of her hot ass. I think that's what makes rectal temp. taking so erotic.

Vaseline does not evaporate like the water based lubes and is a bit stickier to keep things like nozzles in place. You can't use vaseline in silicone toys though. It will start to dissolve it. There are pros and cons to both.

I love Vaseline! But Vicks is still my ultimate lube. I am lucky most of my toys are stainless steel - butt plugs, anal beads, speculums and etc.

We really love vaseline and we use Vicks only when the temperature taken is part of the punishment.

I am old enough to remember that Vaseline was what was available and used all the time. I do keep KY on hand and use it for lubricating other toys, but Vaseline is my go to for rectal temperatures.

None, cause I love to feel the pain when the rectal thermometer is inserted in my anus.

I like them both, if I am taking an enema by my self sitting on the toilet I use Vaseline, kY is to slippery and the nozzle will slip out. If my is helping me I Like KY.

Mom always used KY jelly. Also The pediatrician when she took temp.

@SpankMe2522 said

None, cause I love to feel the pain when the rectal thermometer is inserted in my anus.

Without any lubricant, one day you might feel the pain of the thermometer puncturing the skin or breaking.

My Mom always used vaseline. I use vaseline and sometimes the KY.

But, I prefer the vaseline.

I never knew of anything else but Vaseline until fairly recently. Vaseline worked as lubricant of course but I found it greasy and messy and moreover it had an unpleasant odor about it, something vaguely cloying. It made me feel as if anyone near me must surely have been aware that I'd been using it. It made me a bit too self-conscious of using it.

Since, I started buying KY, usually on-line and I find it much easier to use and clean and it has no odor that I can discern. It is my absolute preference now. Would never consider using Vaseline ever again.

There is also the association of Vaseline with many sleazy jokes and references in movies. In my Belgian high school students would snigger and giggle knowingly whenever the name was mentioned (not by me though). In movies it was sometimes used as a way of referencing anal sex among or with (school) boys. There is a scene in Louis Malle's 'Souffle au Coeur' in which a student in a Catholic high school is called out of class to go to confession. As he leaves, a class wit calls out 'don't forget the Vaseline' which gets a big laugh from the class. This was from a time when confession was often heard in a priest's room, not a confessional. With all the attending temptations ... (btw- in the subtitles in English, this sentence isn't translated at all, it is spoken in french only).

So, another reason why Vaseline leaves a bad impression, be it indelible and comical impression,

Despite warnings that petroleum jelly is a health risk, I've used Vaseline for years when taking or giving an enema. I have used other lubes at times, but I always return to the Vaseline, like the feeling of wearing comfortable slippers.

I really do not see the difference when doing an RT. When doing an enema series, or a single enema with a bulb or piston syringe, Vaseline on the nozzle lasts through multiple insertions, whereas KY tends to wash away. Given that re-lubing isn't a problem. I do not see that one or the other really stands out as "the way to go", whether we're talking RT, enema, or other insertions.

Vaseline, a brand name for petroleum jelly, is a byproduct of crude oil, and was discovered as waste when drilling oil wells. The older versions had a hydrocarbon odor, which may not be the case today. The only health hazard that I'm aware of, is that it can dissolve rubber materials, and has been known to do that with condoms, ....so in that sense, it's definitely a "use with caution" product. If it's been linked to cancer or other diseases, I'm not aware of it, but wouldn't imagine that it could present a danger if used on a rectal thermometer, enema tube, etc., in such small quantities, and not on a daily basis. Vaseline is messy, for sure, but you don't need to use that much. It adheres well to a thermometer, and glistens in the light. When I was growing up, that was the only rectal temperature lube available. Vaseline also makes anal sex seem like magic. The ride up there is so smooth. The current butt lubes, just don't have that same effect, or appearance. They have the consistency of hair jell, but they clean up easily.

There’s probably a psychological element here, since Vaseline was widely used when I was a boy and so brings back emotions that KY jelly doesn’t. But I also like the sensation, since Vaseline feels thicker when the thermometer is first inserted, especially when there is a sizeable glob on the end of the it. Also, the smell, while not as strong as it used to be (remember “white” petroleum jelly?), is still quite evocative for me.

My answer to this subject will be the same to what I had posted on 'Lube for thermometer'

Earlier I had posted that I would prefer none. But if given the option to insert the thermometer with a little amount of lube, I would prefer KY gel. 😃

I prefer KY to any lube.

I prefer Vaseline.

Certainly vaseline as that was used on me as a child. Which I'm guessing started my anal fixation. If the word Vaseline is used, it can tip me over the edge.

At this point, KY is used for temp should one be required and a DRE. There is a distinct difference between KY and Vaseline. I find KY to be colder and to trickle out of my anus following a procedure. Vaseline is not messy and just leaves a small amount of residue. No matter which one is used, there is no denying a penetration of some form was provided!

Both were used when I was a kid, both work all right to me. Vaseline sometimes created a sticky feeling even after the thermometer was out, that reminded me that I got my temperature taken. Sometimes I found it hard to tolerate the sticky feeling there as a kid. But I remember when Vaseline was used, my cheeks were parted and the crack was wiped with toilet paper after it was done.

Have used Vaseline and KY. Much prefer Vaseline. Thicker. KY is a bit too liquidy. Love watching my fingertip spread the thick glob of Vaseline around her puckered hole and then as I push inside, getting her well lubed for the thermometer.

My husband likes to use Vicks on me. It is a little uncomfortable, but I like to make him happy. Occasionally, when he is feeling evil, he threatens to use Ben Gay!

My neighbor girl babysitter used Noxzema cold creme or baby oil when taking my temperature as a toddler. The smell of them both takes me back, and is still very arousing for me. Noxzema has a hint of menthol that made for a cool slight burn. I recall knowing it felt a lot different than when a nurse took my temp at the clinic. I believe she used baby oil on me after my bath, so it was probably convenient to just dribble a little extra down my butt crack before inserting the thermometer. That girl loved temperature taking!

As far as lube goes, there are a lot of options available.

My husband likes to use Vicks on me. It is a little uncomfortable, but I like to make him happy. Occasionally, when he is feeling evil, he threatens to use Ben Gay!

There is a lot of difference between the two. Be very careful with any hot rub like that. Vicks is one thing but Ben Gay will burn your ass to a cinder and there is no way to stop the burn. If you try it, start very small and you will still probably be uncomfortable.

There is a lot of difference between the two. Be very careful with any hot rub like that. Vicks is one thing but Ben Gay will burn your ass to a cinder and there is no way to stop the burn. If you try it, start very small and you will still probably be uncomfortable.

A friend in college used Icy Hot or something like it on his shoulder. Then for the hell of it he rubbed his balls. Trying to wash it off just intensified it and spread the burn. Sensitive area.

For an RT I like Vaseline call me old fashioned....now for anal play I like coconut oil