Hidradenitis suppurativa can affect one spot or multiple areas of the body. Signs and symptoms of hidradenitis suppurativa include: 1  Blackheads. Small pitted areas of skin containing blackheads â often appearing in pairs or a double-barreled pattern â are a common feature.  Red, tender bumps. These bumps often enlarge, break open and drain pus.
Sebum is an oily substance that's secreted by sebaceous glands to keep skin moisturized. Too much leads to oily skin and too little leads to dry skin. Sebum is an oily substance that's secreted by sebaceous glands to keep skin moisturized.
Small bumps or lumps that develop on the vagina are known as sebaceous cysts. These cysts are filled with the protein keratin which tends to have an unpleasant odor. Sebaceous cysts usually occur on the torso, neck and face areas, however at times they can also grow on the vagina and other parts of the genital region. This condition is different from genital herpes in which blister-like crusty sores develop.