The answer to 'why is my shower burst pipe' is that a burst pipe in the shower is usually caused by a buildup of pressure, damage to the pipes, or freezing temperatures. Symptoms include sudden loss of water pressure, leaks, or water flooding the bathroom.
Common causes include corroded or worn-out pipes, a blockage in the plumbing system, or pipes freezing in cold weather. In some cases, a sudden increase in water pressure can also cause a pipe to burst. If you notice a burst pipe, it's important to shut off the water supply immediately to prevent further damage.