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Abnormal nervous system morphology
- ... fertilizing the egg may be lower. Sperm shape (morphology): Over 4% of your sperm should have a normal shape. Sperm with abnormal shapes may not be able to fertilize an ...
- ... and lymphatic system (a part of your immune system) Infections Certain parasites Why do I need a blood smear? You may need a blood smear if: You had a complete blood count (CBC) with abnormal results. A CBC is a group of blood ...