Itchy palms may be a symptom of psoriasis or dyshidrotic dermatitis, a type of eczema, according to WebMD. Eruptive xanthomatosis, a condition connected with diabetes, also may cause itchy palms and feet.
Scabies, also called human itch mites, are parasites that lay eggs under the skin, causing itchy palms, especially in young children and babies, states WebMD. Individuals suffering from scabies may also experience itchiness in other areas, such as armpits, wrists and elbows, and they may have a pimply rash or sores. Other common causes of itchy palms are dry skin, which may stem from winter weather or frequent hand-washing, and allergic reactions.