Sorry, I know hair loss and thinning hair is very troubling. Most likely the hair loss is a delayed reaction (about
2-3 months) from the worst of our flare and hair regrowth is a delayed reaction from recovery from our flare (again delayed by about
Hair loss or thinning hair happens to those who are not on any medications for their UC. Hair loss happens to those that are on the anti-inflammatory mesalamines, the thiopurines (like 6mp/imuran), to those on biologics (like humira or enyvio) despite those medications having very different active and inactive ingredients, and despite them all having very different mechanisms of action.
Here's a good watch for you explaining it more, IBD School, Video 205 – Telogen effluvium (hair loss in IBD):http://www.med.umich.edu/ibd/school/video205.html
Heard some say that biotin-based shampoos help with hair regrowth and thicken hair.