Dietary factors can also cause dark knuckles. A 2016 study showed that knuckle pigmentation is an external sign of a vitaminB-12 deficiency. Other symptoms of a vitamin B-12 deficiency include: 1. fatigue 2. weakness 3. constipation 4. loss of appetite 5. weight loss 6. numbness and tingling in the hands and … See more Acanthosis nigricans (AN) is a skin condition that causes small patches of skin, often near the knuckles, to darken, thicken, and become … See more Dermatomyositis is a rare disease that causes muscle weakness through chronic muscle inflammation. One of the first and most recognizable … See more The main symptomTrusted Source of Raynaud’s disease is blood vessels in the fingers or toes narrowing in response to stressor the cold. This phenomenon can trap blood in the fingers, causing blue discoloration. … See more Addison’s diseaseis an autoimmune condition in which the body mistakenly attacks the adrenal glands, resulting in low levels of cortisol and aldosterone. An initial symptom of … See more WebFeb 13, 2024 · Blood thinners, aspirin, corticosteroids, and chemotherapy that fights cancer can cause black-and-blue marks. Don’t stop taking your meds on your own, though. Talk to your doctor.
Raynaud
WebBlood leaks into tissues under the skin and causes a black-and-blue colour that may become purplish black, reddish blue, or yellowish green as the bruise heals. Rest and home treatment can help you heal. Your doctor may have taped the bruised finger to the one next to it or put a splint on the finger to keep it in position while it heals. WebJun 16, 2024 · A rare blood vessel disorder, Raynaud's disease causes smaller vessels that supply the skin with blood to narrow so much that affected areas can turn white, blue, or red, according to... grand chef corp
21 Hand Symptoms That Indicate Bigger Health Problems …
WebThe sign of any blue color of the skin is always a cause for concern. Most of us know that a blue tinge can be a sign of low oxygen levels and is usually linked to serious and even life-threatening conditions. Without prompt … WebNov 23, 2024 · Raynaud's disease causes smaller arteries that supply blood flow to the skin to narrow in response to cold or stress. The affected body parts, usually fingers and toes, … chinese barnet