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www.reference.com/article/percentage-skin-lumps-cancerous-bd1270f846f22481

A high percentage of skin lumps are not cancerous, according to University of Florida Health. Skin swelling and lumps can be caused by several factors, including trauma and infection.

www.reference.com/article/causes-painful-lumps-under-skin-297f3c303d4740a

Painful lumps under the skin are usually caused by injuries or infections, states MedlinePlus. These lumps include boils, which are caused by infected hair follicles, and carbuncles, which are groups of boils, according to WebMD. Lipomas are soft lumps under the skin that have no known cause, states

www.reference.com/article/lumps-head-indicate-cancer-b9107fc7b683f89f

According to the American Society of Clinical Oncology, the symptoms of head and neck cancer can include a bump, lump or mass in the head and neck area. A lump on the head is not a sure indication of cancer, however, as other medical conditions can cause the same symptoms.

www.reference.com/world-view/cancerous-lump-hard-soft-f3ab6d5cbaa533d2

In many cases, a cancerous lump feels firm to the touch, according to Health magazine. However, malignant soft tumors are also a possibility, explains Cleveland Clinic.

www.reference.com/article/cause-fat-lumps-under-skin-9a00b5db91c8cce3

The cause of lipoma, a condition in which the skin has fatty deposits below it, is not clear, but it may involve genetic factors, notes WebMD. A mild injury also sometimes causes growth of the fatty deposits. Lipomas are harmless and do not progress into cancer.

www.reference.com/article/causes-numerous-lumps-under-skin-9f08be7e4c2c094f

Lumps under the skin can have a variety of causes, including lipomas, enlarged lymph glands, boils, neurofibromas, dermatofibromas and some cancers such as keratoacanthoma, according to WebMD and Patient.info. For example, lipomas are tumors made of soft tissue that occur singly or in small groups,

www.reference.com/article/causes-lumps-bumps-under-skin-efcd13770c1f0987

Several conditions can cause lumps and bumps to form below the skin or on its surface, such as cherry angiomas, skin cysts, epidermoid cysts, keratosis pilaris and folliculitis, according to WebMD. Skin bumps can also result from infections, allergic reactions, hereditary diseases or acne, reports H

www.reference.com/article/symptoms-skin-cancer-479b2b340197ffb6

Skin cancer symptoms include moles that change in size, color or texture; flat lesions with a crusted surface; and a pearly, waxy bump. There are several different types of skin cancer, and each presents with a slightly different set of symptoms, as stated by Mayo Clinic.

www.reference.com/article/causes-skin-cancer-2646e0332262b707

Mayo Clinic cites ultraviolet light from both the sun and tanning beds as the most common cause of skin cancer. Other potential causes that do not involve sunlight are fair skin, excessive moles, living at a high altitude and a family history of skin cancer. The disease can also be caused by exposur

www.reference.com/article/early-signs-skin-cancer-9309d407654d2ab3

Some of the most common signs of skin cancer may include a reddish patch that refuses to heal, a sore that bleeds seems to heal then reemerges, may look like a mole on the skin but develops much faster or appearance of a large spot with dark speckles, as stated by the American Academy of Dermatology