Once the squamous carcinoma skin cancer is removed, how is it checked to ensure that it does not come back?

When a derm sees a suspected skin cancers, a small biopsy is sent to a lab. If it comes back as squamous cell carcinoma, the patient is usually referred to a derm surgeon. The best method is using the Mohs surgical technique, where a scoop is taken out, stained, the searched for cancerous cells. If the margins are not clear, another thin scoop is again removed, and again searched. If necessary, a third and fourth scoop is removed. Now I hasten to add, that the "scoops" are extremely thin. When all margins come back clear, the area is either skin graphed, or put back together in the style of plastic surgery. Google skin cancers + Mohs might find you something.. I had this done a few month ago to two squamous cell carcinomas... and it was three scoops to find clear margins. The record in that office was 13 scoops..... yikes.

Once you are a candidate for skin cancers, you go back to see your derm every 6 months for rechecks.

There are three types of skin cancers... Basal cell, squamous cell, and melanoma. Only the last one spreads. The other two just grow, bleed and erode into nearby tissues.

You continue to have check-ups with a dermatologist who monitors the site. They visually check these sites - that is why it is important to stick with one doctor so that they can see the original site and then know if changes are occurring.

If you are really interested in this, and want to know a legitmate answer then watch a movie called World Without Cancer.

Google search it under videos.

If you can't find the time for it then take my advice very seriously. Get as much B-17 (or laetrile) as you can. If possible ask your doctor for laetrile treatment just to ensure that it never comes back.

You can remove the cancer, but that won't get rid of the problem.
Cancer is a nutritional defficiency, the same as scurvey was. Once people realized scurvey was only a defficiency in Citris, the problem went away. This is the same for cancer and B-17.
Do some research, and give it a try.