helen105281
Senior Guinea Pig
Could you post a photo? It could be mange mites which you would not be able to see but the hair would be broken half way down the shaft. It is not uncommon to get mites and fungal issues at the same time.
The other possibility is a condition called broken back which is also linked to Canida and can look like mites. My pigs had it and they had the V you would expect with mites but it was actually broken back.
The other possibility is a condition called broken back which is also linked to Canida and can look like mites. My pigs had it and they had the V you would expect with mites but it was actually broken back.