" Swollen or raised skin and lumps are areas on the skin that may or may not be itchy. Skin bumps and lumps may be rough or smooth, soft or hard, and dark or light colored. They may occur as a single lesion or as multiple raised areas on any part of the body.These bumps may appear in one area of the body, but they may also cover large areas of the body. There are multiple causes, many of which are described below."
Many different disorders or conditions can cause skin bumps.
Infections, allergies, injuries, new growths, or inflammation can lead
to the formation of lumps on or under the skin. Some of the most common
causes of skin lumps include:
Causes skin bumps or skin lumps
Filled with Puss. It is commonly the result of saving skin areas in the
genitals, armpits, arms and legs.
Source: Meisenheimer Clinic
Many doctors may be able to diagnose common skin bumps from the medical history and physical examination of the patient. However, some doctors may request for laboratory examinations to confirm their suspicions or rule out other possible causes of skin bumps. These may include skin scrapings, skin biopsy, blood tests or more, if needed.
Depending on the cause of skin bumps, raised areas may vary in size, texture, color and location. They may either be smooth or rough, firm or soft, very small to large. The skin may be pink, red, tan, light brown or dark colored. They may or may not be ulcerated. Some bumps are solid while others may be filled with fluid or pus. Bumps on the skin may or may not be painful to touch, and while some may be accompanied by itching, others are asymptomatic.
Skin bumps may be found anywhere in the body, depending on the cause, from the scalp to the soles. While some lumps occur singly such as a cyst, others may be scattered or found in clusters.
The appearance of any bumps on the skin may also be accompanied by other body symptoms such as fever (if caused by an infection) or difficulty in breathing (from insect bites causing a severe allergic reaction).
The treatment of skin bumps will depend on the cause and accompanying symptoms which need immediate or long-term relief. Many skin bumps are harmless and may go away on their own, while others may need medical treatment involving topical medications, oral drugs or even surgery. Treatment may be directed at curing an infection, relieving itchiness or inflammation, treating a systemic disease (like a viral infection) or improving one’s appearance (cosmetic reasons).
One may need to call a doctor if skin bumps are accompanied by symptoms that indicate severe inflammation or widespread infection, such as fever, severe pain, and weakness. Immediate medical help is needed in cases of anaphylactic or severe allergic reactions causing difficulty in breathing and swallowing, swelling of the tongue, hoarseness, dizziness, and loss of consciousness.
Stoppler, M. Bumps on Skin Symptoms. MedicineNet.com.