Itchy legs below the knee often stem from dry skin, eczema, allergies (like contact dermatitis from detergents or plants), insect bites, or shaving irritation, but can signal vein issues (venous stasis), nerve problems (Restless Leg Syndrome), infections, or underlying conditions like diabetes. Common culprits include dryness, irritants, and circulatory problems, with vein issues often causing itchiness on calves/ankles due to fluid buildup from gravity.
Itchy legs can be caused by any number of things, from allergies or insect bites to rashes or dry skin. If it's focused on your calves or ankles, however, there may be an unexpected reason for that annoying, persistent itch — and it starts with your veins.
Both vitamin B12 and vitamin A deficiencies may also cause itchy skin, so if you are experiencing chronically itchy skin, getting your level of these vitamins tested can be helpful. This testing will help determine whether these deficiencies are at the root of your skin sensitivities and itchiness.
Venous insufficiency: a common cause of itchy legs
While healthy veins effectively push blood up from your legs to your heart, venous insufficiency often leads to blood pooling in your legs. This condition can cause various symptoms, including persistent itchiness, swelling, and varicose veins.
Localized itching is often caused by diabetes. It can be caused by a yeast infection, dry skin, or poor circulation. When poor circulation is the cause of itching, the itchiest areas may be the lower parts of the legs. You may be able to treat itching yourself.
Symptoms of hyperglycaemia
What other conditions can cause itchy skin?
See your health care provider or a skin disease specialist (dermatologist) if the itching: Lasts more than two weeks and doesn't improve with self-care measures.
Itching is a symptom of liver disease. You might itch anywhere on your body, but it's most common on the arms and legs, or the palms of your hands or soles of your feet.
Dehydrated skin, on the other hand, doesn't have enough water in the uppermost layer of the skin. This water loss can disrupt your skin's protective barrier function, resulting in uncomfortable skin that feels itchy, dry, and tight.
A study into the relationship between vitamin B12 and itching has shown that some people with a vitamin B12 deficiency may experience itchy skin rashes. This itching can occur in different parts of the body, such as the arms, legs, back or abdomen.
B12 deficiency can trigger specific food cravings, most notably for meat, fish, or eggs, as the body seeks animal-based sources to replenish the vitamin, especially in those on vegetarian/vegan diets or older adults. While cravings for sugary or salty foods can also signal general B-vitamin issues, the distinct urge for protein-rich animal products is a key indicator, but professional testing is crucial for confirmation.
Short-term use of nonprescription corticosteroid cream may offer short-term relief of itchy, inflamed skin. Or try calamine lotion or creams with menthol (Sarna, others), camphor, capsaicin, or a topical anesthetic, such as pramoxine (adults only).
MS itching feels like a deep, intense, "under-the-skin" itch that doesn't go away with scratching, often described as burning, tingling, pins-and-needles, or crawling, because it's a nerve signal issue (dysesthesia) from central nervous system damage, not a skin problem. It can appear suddenly, vary in intensity, and feel like bugs crawling or electric shocks, often affecting limbs, face, or trunk, and standard creams don't help.
Drinking oatmeal can soothe the itchiness. It is especially recommended for people who have dry and sensitive skin. It is a dairy-free milk suitable for vegans which is also good for your overall skin health.
Itch is common in people who have a disease that affects their blood, such as Hodgkin's lymphoma or cutaneous T-cell lymphoma. It can also be a sign of advanced kidney disease and often develops in people who are close to needing dialysis or currently receiving dialysis.
Four key warning signs of a damaged liver include jaundice (yellow skin/eyes), abdominal issues (swelling, pain), fatigue/weakness, and changes in urine/stool color, alongside symptoms like itchy skin, easy bruising, confusion, or nausea, indicating the liver isn't filtering toxins or clotting blood properly.
Share on Pinterest Causes of itchy legs include dry skin, bug bites, and chronic skin conditions. Common causes of pruritus on the body or the legs include: dry skin. irritation from bug bites or allergies to plants, such as poison ivy.
Contact your health care provider if your itching is severe, does not go away after a few weeks, or does not have an apparent cause. You may need other treatments, such as medicines or light therapy. If you have an underlying disease that is causing the itching, treating that disease may help.
Itchy skin (pruritus) can signal various cancers, including skin cancers (melanoma, basal/squamous cell), blood cancers (lymphomas, leukemia, myelodysplastic syndromes), and cancers affecting organs like the liver, pancreas, or bile ducts (causing jaundice). The itching might be localized to a tumor site or generalized, often linked to inflammation, immune responses, or blocked bile ducts releasing irritants, and can also stem from treatments like chemotherapy.
Allergy blood tests are used to help find out if you have an allergy. There are two general types of allergy blood tests: A total IgE test measures the total amount of IgE antibodies in your blood. A specific IgE test measures how much IgE your body makes in response to a single allergen.
To stop itching fast, apply a cool compress or ice pack, use over-the-counter anti-itch creams with pramoxine or menthol, take a cool colloidal oatmeal bath, gently pat skin dry and moisturize with fragrance-free lotion, and wear loose cotton clothing to avoid irritation. Avoid hot water, harsh soaps, and scratching to prevent worsening the itch.
Drink more water
“Water helps your kidneys filter out excess sugar through urine,” says Khan. “So, the more hydrated you are, the more urine production you'll have, which flushes out sugar in the body.” Always opt for water instead of sugary drinks, like soda and juice.