What You Need To Know About ALS – Causes, Symptoms, Treatment Muscle biopsy Source:https://prd-wret.s3-us-west-2.amazonaws.com/ If the doctor believes you have another muscle disease not ALS, you may undergo muscle biopsy – a small sample of your muscle is removed to be analyzed. Prev Next Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27