What is the difference in appearance of scalp ringworm and alopecia? Can scalp ringworm appear like a normal unirriated bald patch on the scalp?

Sometimes difficult- It can sometimes be difficult to differentiate between the two. Indeed, sometimes it can look like an unirritated bald spot. Usually you can see some scaly/crusty areas to the skin. If there is a lot of uncertainty and you really want a "for sure" answer, see a dermatologist who can do scrapings or even a biopsy to determine what is going on.

Related Questions

Is my scalp ringworm bald spot suppose be blackish purplish?

Hard to tell. but blackish purplish is not typical of ringworm (tinea) infection . I think you need to check with your doctor if this has been present for more than 10 days or is progressing. Read more...