Common symptoms related to scleroderma include skin tightening and thickening, especially on the fingers and hands, Raynaud’s phenomenon (color changes in response to cold or stress), joint pain and stiffness, muscle weakness, fatigue, difficulty swallowing, acid reflux, shortness of breath, dry eyes and mouth, and gastrointestinal issues. Internal organs such as the lungs, heart, kidneys, and digestive system can also be affected, leading to complications specific to each organ system.