If you have a hand with a value of 17 in blackjack, the general rule is to stand. This means that you will not take any additional cards and will keep your current total. The reason for this is that the value of 17 is considered a strong hand, and there is a high likelihood that drawing more cards will result in you exceeding 21 and busting.
However, there are some situations in which it may be advisable to hit on a 17, such as if the dealer is showing a card with a value of 7 or higher. In this case, the dealer is more likely to bust, and hitting on a 17 gives you a better chance of winning the round.
It is also worth considering the specific composition of your hand when deciding whether to hit or stand on a 17. For example, if you have a hand of 17 that consists of three or more cards, it may be safer to hit in order to avoid busting.
Ultimately, the decision to hit or stand on a 17 in blackjack will depend on the specific situation and the strategy you are using. It is always a good idea to familiarize yourself with the basic rules of blackjack and the different strategies before playing, so that you can make informed decisions during the game.