Myelodysplastic syndromes often do not cause early symptoms and are sometimes found during a routine blood test. Although the symptoms below may be indicative of myelodysplasia, other conditions may cause the same symptoms. A doctor should be consulted if any of the following problems occur:

• Shortness of breath
• Weakness or feeling tired
• Pallor (pale skin)
• Easy bruising or bleeding
• Petechiae (flat, pinpoint spots under the skin caused by bleeding)
• Fever or frequent infections
• Splenomegaly (enlargement of the spleen)