Morphology

So my SO got his semen analysis results today and everything was normal apart from the morphology. Doctor said it was slightly high but nothing to worry about or no reason to not conceive. I've tried googling it and the doctor said it wasnt anything to worry about but can any one explain to me what this actually is please? He said to try for 3 more months then he will refer us to a specialist 🤞🤞🤞