Yes, squamous cells can be benign. Squamous cells are flat, scale-like cells that form the upper layer of the skin and the lining of organs and tissues throughout the body. They are the most common type of epithelial cell and, when functioning normally, help protect the body from infection and other forms of damage.
In some cases, squamous cells can become abnormal, forming what are known as squamous cell lesions. While some of these lesions can be cancerous, many are benign, meaning they are not cancerous or life-threatening. Benign squamous cell lesions are caused by a variety of factors, including sun exposure, HPV infection, and chronic skin irritation. Common benign squamous cell lesions include actinic keratosis, seborrheic keratosis, and skin tags.
Actinic keratosis is a precancerous lesion that appears as a scaly, rough patch on the skin. It is typically caused by prolonged sun exposure and can progress to squamous cell carcinoma if left untreated. Seborrheic keratosis is a benign, skin-colored lesion that appears as a raised, wart-like growth. It is not caused by sun exposure, but rather by an overproduction of skin cells. Skin tags are small, fleshy growths that appear as small flaps of skin. They are typically benign and are caused by an accumulation of collagen and blood vessels.
In most cases, benign squamous cell lesions cause no pain or discomfort and do not require treatment. However, it is important to monitor them for any changes in size, shape, or color. If you notice any changes, speak to your doctor to determine the best course of action.