Can a herniated disk without nerve compression cause sciatica pain?

Yes. Nerve compression is just one way sciatica can happen. Often when looking at MRI, doctors don't take into consideration that this is a still image and doesn't show what your spine will do when you move, bend over or even stand up. That is why you need to see a spine specialist that can discuss this with you and your options for treatment.
Yes. Herniated disc without nerve compression may cause sciatica by the nerve irritation and inflammation. As a matter of fact, true nerve compression is rarely painful. It rather leads to numbness and weakness.
Yes. Sciatic pain can be due to an inflamatory reaction as well as direct nerve root compression or both. When a disc herniates, there is an inflammatory component that can lead to pain without any nerve root compression still causing pain over the distribution or route of that nerve .

Related Questions

Might a herniated disk without nerve compression still cause sciatica pain?

Absolutely. In fact most sciatica is not caused from frank nerve compression but mostly chemical irritation from the disc problem affecting the nerve. Read more...
Yes. Nerve compression is just one way sciatica can happen. Often when looking at MRI, doctors don't take into consideration that this is a still image and doesn't show what your spine will do when you move, bend over or even stand up. That is why you need to see a spine specialist that can discuss this with you and your options for treatment. Read more...

Could a herniated disk without nerve compression still cause sciatica pain?

Sciatica= nerve com- Pression of the nerves making the sciatic nerve. If no compression then sciatica is unlikely, except if the compression is by spurs of bone from arthritis or thickened l flavum or some other lesion after nerve has exited out of the spine. Read more...
Annular tear. Sometimes the herniated disk has annular tear that releases the spongier nucleus pulposus out that can cause a chemical neuritis on the nerves that is similar to sciatica. Also if the MRI reflects any listhesis (slipping of one bone on the other) there may be a compression on the nerves that will not be appreciated on the MRI because you are lying down and not allowing gravity/forces to move it. Read more...