Are the edges well-defined or irregular?

... the back of the arms, thighs, or buttocks. The patches of bumps tend to get ... Characteristics. Red, dome-shaped, thick bumps with craters in the center ... It's likely to be an infection if the skin around the lump is red and warm. ... Lump on the shoulder, back, chest or arm. A lump on the shoulder, back ... This is a common issue for men who shave their beards. Using incorrect shaving techniques can lead to irritating red spots after shaving on the neck. Underarms: Why do I have little red bumps on my arms? These small bumps on upper arms are basically pores that have become clogged because the skin cells in the outer ... It is especially common in the cape distribution (upper chest, upper back) and the pimples are pinhead sized and uniform. ... This may have led their doctors to ... May 24, 2022 ... Getty Images man itching his arm Getty Images. A rash can be caused ... Those red lumps and bumps then start to blister, and fill with a ... Nov 14, 2022 ... How do I take care of my arm after the TB skin test? What if my TB ... The test is "negative" if there is no bump (or only a very small bump) at ... The main symptoms of an insect bite or sting are: pain or feeling itchy where you were bitten or stung; a swollen lump on the skin. The lump may look red. Keratosis pilaris (pronounced: care-uh-TOE-siss pill-AIR-iss) is a common skin condition that causes tiny bumps. They're most often on the upper arms, thighs May 15, 2023 ... Atopic dermatitis causes itchy reddish rashes on areas like the neck, wrists, and arms and legs. It also is a common pediatric skin condition.