no prbably not
No, most times it's just dried ear wax which is perfectly normal.
if it is white or clear it means that you are now going into the stage called puberty.
chlorine
All semen differs in color. It can have a yellow tint. The only true way is to get a test kit from a spy store.
The yellow sticky stuff in your underwear could be a result of sweat mixing with oils and dead skin cells, which can cause a yellowish residue. It is a common occurrence and can be managed by practicing good hygiene and changing your underwear regularly. If you are concerned, it's recommended to consult with a healthcare provider to rule out any potential infections.
some tip tissue like the the stuff that get crusty on your lips
The clear stuff that i sin girls underwear is called discharge. It comes before your period, its perfectly normal.
Crusty stuff in pipes can be caused by mineral deposits like limescale, rust, or other debris that accumulate over time. These deposits can restrict water flow and cause clogs in the pipes. Regular maintenance and cleaning can help prevent the build-up of crusty deposits in pipes.
The reason you have brown stuff in your underwear is because you didn't clean yourself properly. Not wiping yourself can lead to an embarrassing stain on your underwear as a result of waste that was not cleaned up properly.
White crusty stains in underwear can be caused by a variety of things, such as normal bodily secretions like semen or dried sweat. It doesn't necessarily mean the person has a disease, but if there are any other symptoms present or if it persists, it's best to consult a healthcare provider for further evaluation.
YELLOW