Though it may seem that a toilet is as good a receptacle as any for disposing of household waste, the truth may surprise you. Many common household waste products can cause problems if flushed down the sewer pipes, inviting trouble both in the short term and the long term.
Check out what not to flush down your toilet.
Though it’s perfectly acceptable to dump what’s inside the diaper down the toilet, letting the diaper follow in its wake is a very bad idea. Diapers are designed to absorb liquid waste. They swell in the process. So even if a diaper happens to flush easily, it’ll soon expand somewhere further down the pipeline and likely get caught in a U-bend. That means a nasty clog and perhaps even a call to the plumber.
The same rule applies to feminine hygiene products which, though smaller, also swell in the presence of water.