Differential Diagnosis for Little Spots Under Arm, Itchy, Burning Pain
- Single Most Likely Diagnosis
- Eczema/Dermatitis: This is a common condition characterized by itchy, inflamed skin that can appear as little spots or patches. The underarm area is a typical location due to moisture and friction, which can exacerbate symptoms.
- Other Likely Diagnoses
- Contact Dermatitis: An allergic reaction or irritation from deodorants, soaps, or other products used under the arms can cause itchy, burning spots.
- Folliculitis: An infection of the hair follicles, often caused by bacteria, can lead to itchy, burning spots, especially in areas where hair is present, like the underarms.
- Intertrigo: A skin condition caused by friction and moisture, leading to red, itchy, and sometimes burning patches, commonly found in skin folds like the underarms.
- Do Not Miss Diagnoses
- Cellulitis: A bacterial skin infection that can cause redness, swelling, and pain. While less common in the underarm area, it's crucial to identify due to the potential for serious complications if left untreated.
- Lymphoma (Cutaneous T-Cell Lymphoma): Although rare, this condition can initially present with skin lesions or patches that are itchy and can appear in various parts of the body, including under the arms.
- Rare Diagnoses
- Granuloma Gluteale Infantum: Though more common in the diaper area of infants, this condition can rarely occur in other skin folds, including the underarms, and is characterized by reddish-brown nodules.
- Fox-Fordyce Disease: A rare skin condition causing itchy, dome-shaped bumps in the underarm area (and sometimes the groin), associated with blockage of the sweat gland ducts.