You should not try to remove a cyst on your own. Most cysts on the skin are harmless and resolve without treatment. But some cysts may require a medical diagnosis and treatment. Cysts are sacs that ...

I DIRECTED attention in my 1902 paper (Proc. Zool. Soc., March 4, 1902) to the resemblance between pearls and “the structures sometimes found in epidermoid tumours and atheroma cysts.” A pearl might ...