What does a hemorrhoid look like?

Depends. External hemorrhoids are swollen tissue around the anus pink or red and soft but twender to touch. If it thomboses or clots, pain is increased and it will have apurple color and be firm/hard to the touch. If not sure what the swelling is, get an expert to evaluate and offer treatment options.
Google images. Go to www.Google.Com, search for hemorrhoids, and click on the images tab at the top of your browser. There are lots of pictures of different types of hemorrhoids there.