The phrase "benign skin" means that the skin doesn't have any harmful or dangerous conditions. It refers to healthy and normal skin without any harmful growths or diseases. Full definition
Many older animals develop benign skin tumors, which veterinarians can easily remove. (pawprintsthemagazine.com)
Annually, approx. 50 people in Denmark are diagnosed with the disease, which is often confused with eczema or other benign skin diseases, which is why it sometimes takes years to reach the proper diagnosis. (sciencedaily.com)
But he says that benign skin lesions are far more common in the victims: patches that lack sweat glands or the ability to secrete sebum, resulting in intensely itchy, dry skin that's susceptible to infection. (sciencemag.org)