It is a continuation of the Brachial plexus.
nerve cels
The best place to palpate the sciatic nerve is deep in the buttock. It exists the pelvic area just under the piriformis. If you place your foot on a chair and find the ischial tuberosity (the butt bone - the ones we sit on) and move laterally, you will be on or near the sciatic nerve.
It is contraindicated because an infant's buttock is so small it is easy to inadvertently hit the sciatic nerve causing pain and possibly nerve damage.
At the end of a nerve, there is a synapse, which transfers the signal on to the next nerve until it reaches it's destination - ie. the brain or a muscle. Nerve endings are what we feel the world around us with. Nerve endings are in every part of your body and they are always sensing what is going on around you. They feel the chair against your bottom, the key board under your finger tips, etc.
One of the things it could be isHidradenitis Suppurativa, a form of acne. They start out as painful bumps under the skin and can turn into very painful, what appear to be, large pimples. One theory is that they are actual sweat glands that. for whatever reason, are not draining properly. Possibly linked to hormonal changes, usually begin after puberty. From what I've read, there is no cure, and that some people opt for surgery, but the cysts may still return. Warm compresses, baths and an anti-inflammatory meds have been mentioned as remedies to alleviate the pain.
periphal bundle
You should seek medical attention immediately.
Under your arm.
Sounds like there may be some pressure on a nerve, possibly in the neck.
I have intermittent twinges under my right armpit. It doesn't much, but it annoys me There are no lumps there. Can you help me?
Under your armpit could be breast cancer. It is best you go see a doctor.
shave it
i would not go on it
No but you can get a rash.
A change in deoterant and/or laundry soap can cause this
Crush a polystyrene cup under the armpit.
under the tongue or in the armpit