Fatigue and Anemia are the most common to occur if you have SCA.
Dactylitis (swelling and inflammation of the hands and/or feet) and Arthritis is also common most likely garenteed to happen.
Splenic Sequestration (sudden pooling of blood in the spleen) and Liver Congestion is fatal and needs to be treated right away.
This would cause a weakening of the bones because the body will start to more readily dispose of the Vitamin K because it becoming to prolific in the body.