Yes. Be sure to use good form on lunges prior to adding weight to them.
Ways to check your form:
Are your knees coming past your toes when you go into your lunge? How to check: Stand at a lunges stance with your toe against a wall. Do a stationary lunge and see if your knee hits the wall. If it is, you are leaning too far forward in your lunge.
Are your knees buckling or pointing outward while you do a lunge? How to check: Do a lunge facing a mirror. Your toes should always be facing forward. Check your knee location (which should be in line with your toes) If it is pointing outward or inward, you need to correct this before proceeding.
Keep your torso erect. How to check: Do a lunge parallel to a mirror to check your torso postition. If your chest is not perpendicular to the floor, drop the weight and keep your hands on your hips throughout the move. One additional way is to hold your arms out parrallel to the floor and at a 90 degree angle from your upper body. Do a lunge and maintain your arm position.
Lunges seem to be the dreaded exercise of almost everyone alive. However, they are one of the most muscle taxing and offer great strength gaining benefits.
But look at it this way, if the current and former Mr. Olympia's did them from end to end of a parking lot, apparently they are worth the while to include them into your leg workout.
As with any exercise, you want to get the form down pat prior to adding additional weight to them.