Tagged with: Cancer disease tumors Mesothelioma is a serious form of cancer. The disease causes tumors to grow in the membranes that surround the organs. It occurs most often in the chest, but it can occur in any part of the body where these membranes occur. The cancer can also metastasize, or spread, to other parts of the body. In the early stages the disease can cause fatigue and respiratory complications; in the later stages the disease can cause damage to the nerves leading to a variety of dysfunctions. If the disease metastasizes, it can cause further disabling symptoms depending on where it spreads. Additionally, some of the treatments used to manage the disease can also be strenuous.