What Are “Pins & Needles”??

Pins and needles. We’ve all been there before. You know that moment where you’re sitting on the floor, cross-legged, enjoying yourself, having a great time And you decide to get up. Go to the restroom. And about 5 steps in, all of a sudden you feel like you’re walking on glass. If you’re anything like me, you’re overly dramatic about it, too. You know, hopping around and making a show of it. You’re experiencing pins and needles or what a lot of people would say is your leg has fallen asleep. In today’s episode, we’re gonna figure out what’s exactly going on with it. So let’s do this. The first thing we need to do is discuss what pins and needles really is. And it’s real name is called parasthesia. Now parasthesia kinda sounds a little bit like paralysis and they do go hand and hand because those individuals who do have some paralysis will also be experiencing some level of parathesia. Parathesia is just that which we already know comes with pins and needles. Right? We get numbness, tingling, stabbing, burning. A lot of people even describe it as, like, this static-y type of feeling. I know myself that’s what, how I feel is this very static-y, just crunchy type of, uh, sensation. And that’s parasthesia in general, but there’s even two subsets of it. You can have what’s transient or you can have chronic. Transient is the one we’re talking about today. And this is one that is pretty short-lasting and it’s typically coming from some type of awkward posture and pressure that you put onto the nerve itself. Or maybe even the blood supplying it. Chronic, on the other hand, this is obviously more long-lasting and typically comes from damage or some type of infection such as Lyme disease that’s affecting the nerve and causing these sensations to occur. We’re gonna spend our time, like I just mentioned, talking about transient. So, let’s say you’re just sitting cross-legged or you’re sitting, um, you’re kind of crossing your legs in a chair. Something along those lines and you’re gonna be putting pressure in the back of the thigh right here. Cuz this is what we’re looking at. You have a zoomed in picture of the back of the knee and then we’re seeing the distal aspect or the farthest aspect of the hamstrings. Now, there are three hamstrings. We have the biceps femoris, we have the semitendinosus, and, this is pretty cool, you can see its long tendon here and then we also have, just underneath it, the semimembranosus. So there are three hamstrings but what we want to look at is what’s between them and if you look closely, you might see these two little tubes coming out. And if I kinda bring them to the surface, you are looking at the sciatic nerve as it splits into two smaller nerves. You see, the sciatic nerve is really two nerves bundled together as one. And we can see them splitting here into the common peroneal nerve and the tibial nerve. The common peroneal would then wrap around the head of the fibula and go to the side of the leg, the lower leg, and the front of the lower leg while the tibial nerve continues all the way down to the bottom of the foot. And that’s gonna be important, ‘specially when we start explaining the symptoms of parasthesia. Alright? So let’s say, again, that you’re just in this cross-legged position and you’re just putting pressure. So even though this nerve is still deep to the hamstrings, the constant pressure that could be put on this is enough that over time, the nerve kind of gets a traffic jam. You could literally think that the signal is not able to be sent so it starts to shut down. And that’s why you experience this numbness. So if the pressure that you’re applying is significant enough you could be affecting the blood vessels that are deep down that supply the nerve to make it work, giving it oxygen and energy in the form of glucose. If you do that, the nerve just pretty much shuts down. And when it shuts down, obviously it can’t send the proper signals. That’s parasthesia. So you usually feel, oh no, my leg is going numb. And then, what do you do? You get up, and again, if you’re like me, you’re being overly dramatic with this but all of a sudden as you restore blood supply as you res- take the pressure off of the nerve itself you could think of it as rebooting. The whole thing just comes back online. And as it comes back online, it just starts sending signal after signal after signal, this rush of signals and your brain interprets that as pain or the static-y, burning, stabby type of feeling. And you feel it all the way down, right? It’s gonna go down the lower leg and it’s gonna even go to the bottom of the foot. I know for me, again, it’s like I’m standing on tacks or something like that. Remember, I-I am being overly dramatic with this but that pain is coming from the nerve rebooting. That’s what pins and needles are. They are the nerve turning back on. You turned it off. You flipped the light switch, and it’s letting you know that you were applying significant enough pressure and you were kind of, sort of harming it. Now, if you did that long enough, you literally could create long-lasting damage. But I think most of us aren’t going to be doing something like that. At the same time, though, individuals who may not have as much of a choice. Let’s say someone who’s in a wheel chair, again, just because you may be paraplegic or have some kind of issue with your legs doesn’t mean you’ve lost all feeling in all scenarios. They could be having that pressure and they could be feeling some really intense pain and doing long-lasting damage. The same could go for those who just spend way too much time sitting or in bed. You can just create the scenario yourself and probably have a good idea as to what’s going on. But, there you go. Hopefully, that answers your question as to what parasthesia or pins and needles are. It’s your nerve rebooting.

100 thoughts on “What Are “Pins & Needles”??

  1. One time it was my whole leg and half up my hip and for me it felt like it was getting chopped off I wanted to cry and I was in the middle of a school test it was so quiet it was the worst time of my life

  2. I love how the very first ad I see is fucking KFC then not even 3mins into the video he shows what's underneath the human leg.

  3. 5 steps in? How dumb are you to try to even walk at all in that situation? Are you trying to break your ankle or hyperextend your knee?

  4. I get it in my upper back my guess is that because I have a bulging disc in my back a nerve is being pinched. It happens so often that I am scared of permanent damage. Sometimes it feels like there isn’t enough blood there either.

  5. Mines chronic and let me tell you it's hell I never get any sleep and it won't go away meds works some but can't get surgery to fix myself (so says my Dr.) since it's super expensive.

  6. Wait… is that a REAL HUMAN PART?!… yes I'm really asking…. also.. if soo.. whoa!!! How?! And cool… but weird.. wow.. also.. I have Pudendal Neuralgia… could you show that??

  7. Im a med student u explain shit Better than my professor hes also like 300 years old and might be a warlock but anyways your videos are very informative!

  8. Love the positive atmospheric music while showing what I'm assuming are dead bodies in the back and in this guys hands YouTube is a little weird whit what it allows to show and doesn't let you show.

    Also how do you deal with the smell . It is a corpse after all natural decomposition has to affect it at some point.

    Last thing, RIP person who donated you're body to science thank you for sharing.

  9. Question if you see this can u explain why if you sit down normally on ur butt u dont get pins and needles on it why? And on other parts u do lol

  10. Omg the people in the comment section just can’t take there being “dead body’s” get over it you would,learn more from the real thing then the fake thing

  11. When I get pins and needles, it doesn't hurt for me it just really tickles but with an odd "point" to it. I also start laughing. Anyone else?

  12. Can you please talk about chronic pins and needles, I've been having them on my feet for the past 3 yrs and it really hurts.

  13. Is it me or what, but when I see a ‘dead body’ I find it gross but when I watch this I’m just like ok ok then I notice it’s a dead body and be like wtf

  14. I stumbled into this stoned and didn't realize this is anatomy and that's somebody's leg he is poking around in..not to mention the next contestant to the corpse is right over there behind him…

  15. oh my god I thought my fear of being touched behind my knees was bad before, it’s crippling now. My legs literally hurt seeing you tug at the nerves inside omg

  16. But what if your sleeping and in a certain position, your arm/hand goes numb? I be waking up sometimes and my hand and arm will hurt so bad I can’t even move it. And it’s all tingly.

  17. bruh, i fell asleep on my front side right on my left arm for a full 8 hours and i woke up the next morning and i couldnt move my arm. i literally lifted it and it flopped right back down onto my chest. weirdest thing thats ever happened to me before in my life! i kept trying to move it and i literally could not feel it attached to my body for 2 minutes. kinda scary not even gon lie

  18. My legs keep going out when I sleep. My whole body feels like its burning especially in my feet. I went to hospital with pain in a 10 and did nothing. They took away my psych meds been 2 years pure hell.

  19. Nah imagine someone comes in, in the middle of the night and some body groans and turns over and goes smack and yawn and says I need water, NAHH imma stay chill with the dude 😉 lmfao

    Tbvh I would say, “aight, imma head out.”

  20. one time in 6th grade we were doing our history final and my leg fell asleep while i was sitting, and when i got up to turn my test in i fell because my foot was asleep. i ended up needing help to get to my next class because of the pins and needles

  21. Once I fell asleep with my head on my arm, and when I woke up I couldn’t move my hand or fingers, it was much colder than the rest of my body, and I couldn’t feel anything. It felt like someone else’s hand, is this the same thing?

  22. are we gonna y’all about how there’s just two dead bodies on school tables?😭 i mean i know he’s showing them for the example nd everything but damn that’s just hella weird 😭

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