Sickle cell anemia is a genetic disorder that affects red blood cells.
Step 1: Symptoms of sickle cell anemia.
1. Pain episodes - Due to the sickle-shaped cells blocking blood flow, individuals often experience episodes of severe pain.
2. Fatigue - The sickle-shaped cells cannot carry enough oxygen, leading to tiredness and weakness.
Final Answer:
1. Pain episodes
2. Fatigue