Do mosquitoes bite you more than once?

Only female mosquitoes bite, though all mosquitoes live on the sugar found in plant nectar, not on blood. Female mosquitoes bite to obtain necessary proteins from blood so they can produce eggs. Proteins in human and animal blood are necessary for the female mosquito to produce fertile eggs; since males cannot produce eggs they have no need for blood. Females require a new blood "meal" for every nest they lay, and produce about 250 eggs per meal.