The answer to 'what causes bathtub' is that there are several common causes of bathtub issues. Some of the most frequent problems include clogged drains, leaks, and worn-out or damaged components like the faucet or shower curtain rod. Clogged drains can be caused by hair, soap scum, and other debris building up over time. Leaks can develop around the tub, faucet, or drain, leading to water damage and mold. Worn-out parts like faucets and shower curtain rods may need to be replaced as they deteriorate with regular use.
In many cases, these bathtub issues can be diagnosed and repaired by a skilled plumber. However, some minor problems like unclogging a drain may be fixable with DIY methods if you have the right tools and knowledge.