Anyone know the difference between sperm count and sperm concentration?

Sienna

My hubby just got his semen analysis back and the doctor told us that his sperm count was okay but his sperm concentration was a bit low (5.9 Million).

He said that the number of sorry was 9% which was okay, sperm movement was good at 32% but sperm concentration was low so he should get on a multivitamin to help with his sperm health.

Anyone know if that means he has a low sperm count?

He said we should just keep trying for the next 2-3 months and see how it goes before going back again.