Not if you do it right.
Tip: If the current jackpot is greater than (cost-of-ticket times odds-against-winning), then the "house odds" are actually in your favor and in the long run you'll make money in the long run playing the lottery (as long as you *only* play it on those days when the preceding is true).
For the Texas lotto, this is when the jackpot is over 16 million dollars.
What happens in these cases is that all the people who lost on the preceding drawings (which is how the jackpot rises) are "subsidizing" your playing.