I'm wondering if anyone else has noticed anything like this.

When I extend my arm and angle my wrist down, and lightly run my other hand over the top of my forearm, I can feel little lines of bumps.
seems like they are running along the tendons or maybe the muscles...

I haven't had a dr check it yet, just a weird thing and I wanted to see if anyone has this also. No pain with it, if anything maybe a lingering minor tightness.

Might be Tendinitis, tendinosis or Tenosynovitis - or just some other strange thing LOL.

I did have severe bilateral wrist/arm problems in 1999, my first injury, work related..

i wanna say i had something similar to this when i had a lot of ganglion cysts in my wrists. but they went away.

My dh had a ganglion near his wrist ( 2 times) but it went away both times.
a gal I used to work with had a big ganglion on her knuckle.

the things I have are deeper under the skin and you can't see anything on the surface, I only feel it when I rub along the arm with a light touch.
kind of like little rows of lentils or split peas the length of my forearm.

yeah what i meant was maybe its synovial fluid? but im not sure if it would be located there, hrmm

had them since my accident (2000).

both therapist worked on them and wore their thumbs out. mine are painful. tirgger point injections was a joke, at that time. Those bumps/knots was why my PT wanted to do the ASTM (augmented soft tissue manipulation). Well, just slap someone if they want to do that to you.

They grease you up with lotion and scrap you down like a hog that's being slaughtered. Talk about bruising, boy, I had it. Can't think of one good thing came out of that session, other than the therapist referred me to another therapist/facility.

The Kinesio tape helped them be less painful and helped me with ADLs.

I do trigger point therapy myself and use knob-type things, Theracane to work on them myself. Seems like if I help one a little, I find two more to deal with. Kind of like fibrocystic disease, of my tnedons.

Ice or cold don't seem to help them, at all. Makes them harder and painful.

The LED/infrared light therapy pads help my arms termendously.

Keeping them fleece warm helps my pain level tremendously. Arm socks, ummmm.

Of course doctors have examined and felt them, but didn't do much about them. Most have gone away. I still have a lot but they don't seem to be so quickie or painful.

Hope you find a diagnosis. I never did.

Keyboarding makes them hard and painful...

If these lumps are hard...they may be calcium deposits.

I'd try the magnesium lotion on them. CVS Epsom lotion.
Some people deposit calcium along tendons.

They could be lipomas (not so hard feeling tho) or uric acid
nodules. A blood test can reveal elevated uric acid in the blood.

Lipomas are the most common though.
If they hurt to press on, they may be neuromas.