Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Sickle Cell Disease ?
    ### Response:
    Early Signs and Symptoms
                
If a person has sickle cell disease (SCD), it is present at birth. But most infants do not have any problems from the disease until they are about 5 or 6 months of age. Every state in the United States, the District of Columbia, and the U.
    