The brown colour of stools is mainly due to bile, produced in the liver.
White stools indicate that bile is not getting into the intestine due to blockage of the bile duct, most commonly due to gallstones. If it happens after gallbladder surgery, it may indicate damage to the bile duct.
No, they don't.
Stools with wheels are not considered to be safe. If stools with wheels were to be used in a bar, with the intake of alcohol, they are not very safe at all. For normal use within a home, they are a lot safer.
No, you should go get it checked by the doctor.
Yes, that can happen.
A person should never have pink or flashy stools unless the person is on a special diet. Sometimes babies have different colors that are normal but not normal for an adult. If there is not a known reason it is best to ask a doctor. There could be a medical issue that requires treatment. If this is a one time stool, there is probably not a reason to be concerned.
Depends on the type of surgery
will sight return to normal after FILMS surgery and cateract surgery
Tarry stools are an indication of a gastrointestinal bleed. These can be fatal very rapidly. Get the dog to a vet at once. Consider preserving a stool sample too.
Every doctor is different in how they treat/do surgery on the spine. There is no way to know what the normal process is for cervical spine surgery. You can research this online.
Most skin cancers treated by Mohs surgery are completely removed with minimal loss of normal skin.
You are probably talking about lizard's excreta/feces. It is what looks like "black with white at the end of it"
It is normal to have swelling soon after a hernia operation or any other surgery. It's also normal to experience pain and bruising after surgery.