3 Telltale Signs You Have a Slipped or Bulging Disc

When a disc herniates, the gel-like inner material leaks out into the spinal canal.
Lumbar Herniated Disc Video

When a disc in your lower spine bulges or tears, you may feel pain in your lower back and/or your leg. Here are 3 unique signs of a herniated or protruding disc to help you identify the underlying cause of your lower back problem:

1. Pain while sitting

An activity that exerts tremendous pressure on your lower spinal discs is sitting. If you have a herniated or bulging disc, this increase in pressure within your disc may cause the bulge to become more pronounced, which may aggravate your lower back pain when you sit.1

See Lumbar Herniated Disc Symptoms


2. Radiating pain into your leg (sciatica)

The discs in your lower back typically herniate or bulge in the posterior (back) and/or lateral (side) region, which is in close proximity to your spinal nerve roots. Herniated discs may affect these nerve roots through one or both of the following 2 methods2-4:

See What You Need to Know About Sciatica

  • Direct compression. When the disc’s bulge or leaking inner contents directly press on a spinal nerve root as it exits the spinal canal.
  • Chemical irritation. When a herniated disc leaks out acidic chemical irritants from the disc material, which may cause inflammation and irritation in the area around the nerve root.

The function of the affected nerve root is then altered, and you may feel a burning pain along with numbness, weakness, and/or tingling along the front and/or back of your thigh, leg, and/or foot. These symptoms are commonly referred to as sciatica. The symptoms and signs of sciatica typically affect one leg at a time.

3. Pain aggravated by specific activities

Your lower back pain and/or sciatica may worsen when you perform certain activities, such as1:

  • Bending forward/down
  • Lifting a heavy object
  • Pushing or pulling a heavy object
  • Coughing
  • Sneezing

Lumbar herniated disc pain usually comes on fast. In most cases, there is no single, clear reason for the pain, such as a specific injury or traumatic event. Yet, the pain feels sudden.5

See Lumbar Herniated Disc: Causes and Risk Factors

This condition can be very painful, but for most people, the symptoms don’t last too long. Nearly 90% of people who experience painful lumbar disc herniation report within 6 weeks that they no longer feel the pain, even if they received no medical treatment for it.5


Warning signs and when to see a doctor

Visit your doctor if you exhibit these 3 telltale signs of a herniated disc. Your doctor may recommend a combination of nonsurgical treatments, such as pain-relieving medications and a guided physical therapy program, as well as referral to an interventional pain specialist for image-guided lumbar injections—to help decrease inflammation and relieve the pain.

If you experience any difficulty in controlling your bowel and/or bladder movements, numbness in your inner thigh and genital area, and/or problems in starting urination, consult your doctor immediately. These symptoms and signs may indicate cauda equina syndrome, a serious medical emergency, which is possible with certain severe lower back disc herniations.6-8

See When Back Pain May Be a Medical Emergency

Learn more:

Diagnosing a Lumbar Herniated Disc

Surgery for Lumbar Herniated Disc


  • 1.Amin RM, Andrade NS, Neuman BJ. Lumbar Disc Herniation. Curr Rev Musculoskelet Med. 2017;10(4):507–516. doi:10.1007/s12178-017-9441-4
  • 2.Kumar, M. Epidemiology, pathophysiology and symptomatic treatment of sciatica: A review. nt. J. Pharm. Bio. Arch. 2011, 2.
  • 3.Gore S, Nadkarni S. Sciatica: detection and confirmation by new method. Int J Spine Surg. 2014;8:15. Published 2014 Dec 1. doi:10.14444/1015
  • 4.Molinos M, Almeida CR, Caldeira J, Cunha C, Gonçalves RM, Barbosa MA. Inflammation in intervertebral disc degeneration and regeneration [published correction appears in J R Soc Interface. 2015 Jul 6;12(108):20150429]. J R Soc Interface. 2015;12(104):20141191. doi:10.1098/rsif.2014.1191
  • 5.Slipped disk: Overview. Updated 2017 Jun 1. Available from: https://www.ncbi.nlm.nih.gov/books/NBK279472/
  • 6.Donnally III CJ, Butler AJ, Varacallo M. Lumbosacral Disc Injuries. [Updated 2019 Apr 11]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK448072/
  • 7.Bednar DA. Cauda equina syndrome from lumbar disc herniation. CMAJ. 2016;188(4):284. doi:10.1503/cmaj.150206
  • 8.Kapetanakis S, Chaniotakis C, Kazakos C, Papathanasiou JV. Cauda Equina Syndrome Due to Lumbar Disc Herniation: a Review of Literature. Folia Medica. 2017;59(4):377-386. doi:10.1515/folmed-2017-0038