30's male with unilateral low back ; buttock pain describes sciatica
If acute use rest ; heat. If chronic (more than 2-3 mo) concen for lumbar disk, pyriformis syndrome, sacroiliac joint (sij) disorder, etc. Osteopaths can discern. I have found young males often incur chronic sciatica from extreme sports participation w. Permanent sij injury ; subluxation (occupational disabilities guidelines).