GVHD is classified into acute and chronic forms, each having distinct symptoms. Acute GVHD typically manifests within the first 100 days post-transplant and affects the skin, liver, and gastrointestinal tract. Symptoms include skin rashes, jaundice, and diarrhea. Chronic GVHD, which occurs beyond 100 days, can affect multiple organs and present with symptoms resembling autoimmune diseases, such as dry eyes and mouth, skin thickening, and joint stiffness.
