non-cancerous sacs under skin, often from blocked hair follicles
Follicular cysts, also known as epidermoid cysts, are non-cancerous, small, sac-like structures that form beneath the skin, often due to the blockage of hair follicles. These cysts are typically filled with keratin, a protein found in skin cells, and can appear as small, round bumps that may become inflamed or infected, causing discomfort or pain.