Sciatica feels like a sharp, shooting pain that travels from your lower back down one leg, often described as a burning sensation or an electric shock. The pain typically follows a specific path along the back or outside of your leg, and it can range from a mild ache to pain so intense it stops you mid-step. Alongside the pain, you may feel tingling, numbness, or a heavy sensation in the affected leg.
The Core Sensations
People with sciatica use remarkably consistent words to describe it: burning, electric, shooting. It’s not the dull, diffuse ache of a sore muscle. The pain has a distinct nerve quality to it, like a hot wire running through your leg. Some people feel a constant low-level burn with occasional jolts of sharper pain layered on top. Others experience sudden, intense shooting pain that comes and goes.
Beyond pain, sciatica commonly causes a pins-and-needles tingling, similar to what you feel when your foot “falls asleep,” except it doesn’t go away when you shift position. Numbness can develop along the same path as the pain, leaving patches of skin on your leg or foot feeling muffled or absent. Some people also describe the affected leg as feeling heavy or weak, as though it’s harder to control than usual.
Where You Feel It
Sciatica follows predictable routes depending on which nerve root in your lower spine is being compressed. The two most common patterns involve the lowest lumbar nerve and the first sacral nerve.
When the lowest lumbar nerve root is involved, pain and numbness run down the outside of your leg and into the top of your foot. When the first sacral nerve root is compressed, symptoms travel down the back of the leg and into the outside or bottom of your foot. In both cases, pain starts in the lower back or buttock and radiates downward. It almost always affects only one leg.
This is one of sciatica’s most distinctive features: the pain doesn’t stay in one spot. It moves. You might feel it start in your lower back, flare through your buttock, and shoot all the way to your calf or foot. That radiating quality is what separates sciatica from a simple back strain or hip problem.
What Makes It Worse
Sciatica has a frustrating habit of flaring during everyday activities. Sitting is one of the most common triggers, because it tightens the muscles that support your spine, particularly the hamstrings and hip flexors, increasing pressure on the irritated nerve. Long car rides, desk work, or even sitting on a soft couch can ramp up symptoms quickly.
Anything that increases pressure inside your spinal discs can intensify the pain. Coughing, sneezing, and straining on the toilet all create a sudden spike in that pressure, and many people with sciatica dread all three. Bending forward, twisting, or lifting with poor form are also reliable triggers. Even sleeping on your stomach can strain the lower back enough to worsen symptoms overnight.
One telltale test your doctor may perform involves lying on your back while they raise your straight leg off the table. If this reproduces your shooting leg pain somewhere between 30 and 70 degrees of elevation, it strongly suggests nerve root compression. The pain should radiate below the knee, and many people feel it shoot all the way to the big toe. You can sometimes notice this same pattern at home: raising the affected leg while lying down intensifies the pain in a way that a simple muscle problem wouldn’t.
When Weakness Develops
In more severe cases, sciatica goes beyond pain and numbness to affect muscle strength. You might notice difficulty lifting the front of your foot, a condition called foot drop. People with foot drop drag their toes when they walk and often compensate by lifting their knee higher than normal, creating an exaggerated stepping motion. The affected leg may feel unreliable on stairs or uneven ground.
Muscle weakness can also show up more subtly. You might struggle to push off your toes when walking, or notice that your calf feels weaker on one side. If you’re experiencing noticeable weakness rather than just pain, that typically signals more significant nerve compression and warrants a medical evaluation sooner rather than later.
Sciatica vs. Piriformis Syndrome
Not all pain that shoots down your leg is classic sciatica. Piriformis syndrome, where a muscle deep in your buttock irritates the sciatic nerve, can feel similar but has some key differences. With piriformis syndrome, you’re less likely to have significant lower back pain. The discomfort centers more in the buttock and is provoked specifically by hip movements and prolonged sitting. True sciatica, by contrast, tends to involve lower back pain, a heavy feeling in the leg, and that characteristic flare when you raise your leg while lying down.
How Long It Typically Lasts
Research published in the British Medical Journal found that roughly 60% of people with sciatica recover within six weeks using conservative approaches like staying active, gentle stretching, and over-the-counter pain relief. For many people, the sharp shooting pain fades first, while residual numbness or tingling may linger a bit longer.
That said, the first few weeks can be genuinely miserable. Pain may disrupt sleep, make commuting unbearable, and limit your ability to exercise or work. The intensity often fluctuates from day to day, which can be confusing. A good day doesn’t mean you’re healed, and a bad day doesn’t mean you’re getting worse. The overall trajectory matters more than any single day.
Symptoms That Need Emergency Attention
A rare but serious complication called cauda equina syndrome occurs when a large disc herniation compresses multiple nerve roots at the base of the spine simultaneously. The warning signs are specific: numbness spreading across your inner thighs, buttocks, and the area between your legs (sometimes called saddle numbness), along with loss of bladder or bowel control. You may lose the sensation that tells you when you need to urinate, or find that you can’t stop yourself from going. This is a surgical emergency, and delaying treatment can result in permanent damage.