Does ALS cause pain?

Pain is not a common symptom of amyotrophic lateral sclerosis (ALS) itself; however, complications related to the disease can be painful. For example, weak muscles can put extra strain on joints, which can cause aches and pain, and difficulty moving can lead to abnormal pressure on the skin, resulting in sores or wounds. Muscle spasms and constipation are common among ALS patients and also can be painful.