Total 5 clinical symptoms reported for Glycogen storage disease, type VII  Very Frequent (3)Frequent (2)

Anemia	A reduction in erythrocytes volume or hemoglobin concentration.   Synonyms:Anaemia; Low number of red blood cells or hemoglobin	Very frequent
Increased muscle glycogen content	An increased amount of glycogen in muscle tissue.	Very frequent
Myotonia	An involuntary and painless delay in the relaxation of skeletal muscle following contraction or electrical stimulation.   Synonyms:Delayed relaxation of muscle fibers after contraction	Very frequent