@visual.healthlab: L4–L5 Compression: Can You Prevent It? L4–L5 compression can cause lower back pain, numbness, tingling, or pain down the leg. If you sit for hours, lift heavy loads, or have an MRI showing L4–L5 compression, this is important to know. Do you have L4–L5 compression? Where do you feel the pain? #L4L5 #LowerBackPain #Sciatica #HerniatedDisc #SpineHealth