Yes, amyloidosis can absolutely affect the skin! Around 30–40% of people with AL amyloidosis experience skin-related symptoms. When amyloidosis primarily targets the skin, it's called primary localized cutaneous amyloidosis (PLCA). Here are the most common skin symptoms to look out for:
- Purpura – Purple, reddish, or dark Show Full Answer
Yes, amyloidosis can absolutely affect the skin! Around 30–40% of people with AL amyloidosis experience skin-related symptoms. When amyloidosis primarily targets the skin, it's called primary localized cutaneous amyloidosis (PLCA). Here are the most common skin symptoms to look out for:
- Purpura – Purple, reddish, or dark brown patches caused by bleeding under the skin, often appearing around the eyes
- Waxy bumps – Small raised bumps, often near the eyelids, neck, or armpits
- Blood-filled blisters
- Thick, scaly, or itchy skin patches
- Brittle or ridged nails, or nails separating from the nail bed
- Hair loss
- Swelling or bruising around the eyes
- Yellowing of the skin or eyes There are also specific skin-only forms of amyloidosis worth knowing about:
- Lichen amyloidosis – Very itchy, scaly rash on the legs and arms
- Macular amyloidosis – Flat, itchy brown or gray patches, usually on the upper back
- Nodular amyloidosis – Firm, raised bumps on the face, limbs, or torso
- Amyloidosis cutis dyschromia – Patches lighter or darker than surrounding skin
While skin symptoms can be uncomfortable, they generally have less impact on overall health compared to heart or kidney involvement. That said, always flag any new skin changes to your doctor — a skin biopsy can confirm whether amyloid deposits are the cause.
August 7
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