After urinating, there is a lot of semen at the bottom of the toilet

Will you not have stones? It is recommended to do a B-ultrasound to check the kidneys, ureters, and bladder.

It has nothing to do with your physiology and diet, not the toilet.

Some people are very nervous about foaming when they urinate, feeling different from normal people, for fear of something in their body. In fact, it is normal to have foam when urinating. It's just that a very small number of people urinate foamy and may contain protein. >>>More

That's post-sexual coagulation.

The residue is not. Affair. >>>More

These will produce some foam, which contains a lot of substances. Due to the low surface tension of protein, urgency, when there is a lot of protein in the urine, for fear of what disease the body has, and some metabolic products, there are small molecules of protein, and I feel that it is different from normal people, so I need to ask a nephrologist for a detailed examination, and there may be a lot of foam on the surface of the urine, and frequent urination. >>>More