Whether a snail can survive after a broken snail shell depends on the damage of the snail shell. If the degree of damage is large, or the whole thing is damaged, then the snail will not survive. If the degree of damage is relatively small, then the snail may still survive.
Snails are a terrestrial species. They often carry a shell on their bodies, but the existence of anything in nature is reasonable. Its shell is not dispensable, but essential. Crucially, for the snail itself, this shell is directly related to its life. People who understand the body structure of snails will know that many of the snail's important organs are inside this seemingly dispensable shell. For example, the snail's liver and snail's lungs are protected by this hard shell. Once a snail is frightened by the outside world, it will hide in its shell. This shell is not only a protective umbrella for the snail, but also its life. Although the snail's shell is very thin, it is very hard, so it will not be damaged under normal circumstances. But what should you do if it's damaged?
Once the snail's shell is damaged, the snail itself will be in danger. This will be discussed based on the damage to its shell. If the snail's shell is only slightly damaged at the edges, it will not have much impact on the snail, because it can secrete a substance to repair the damaged part. After all, accidents happen from time to time. Without this ability, it would be difficult for the snail species to survive today. It's just that the repaired part can be seen. It cannot be exactly the same as the previous shell. Its color will be lighter than the previous shell. If the degree of damage is larger than what the snail can repair, then the possibility of the snail surviving is relatively small. It depends on the snail's own destiny and whether the damaged part is fatal enough.
But if the middle part of the snail shell is damaged to a large extent, or even completely damaged, then the snail basically cannot survive. Its organs have no protection and it is in danger. There is no place to hide. If the snail shell is damaged, there will be no mucus to maintain the snail's moisture, and the snail will eventually dry out and die.