Milia: This condition is characterized by small, white bumps on the skin that occur when keratin, a protein, becomes trapped under the skin's surface. The presence of some redness could be due to inflammation or irritation of the surrounding skin.

Keratosis Pilaris: A skin condition that causes rough, dry patches and small bumps, often accompanied by redness. It's common in adults and could be mistaken for milia, especially if the bumps are small.
Folliculitis: An inflammation of the hair follicles, which can cause redness, itching, and small bumps that might resemble milia. It can be caused by bacterial or fungal infections.
Comedonal Acne: A form of acne that presents with small, white bumps (closed comedones) or blackheads (open comedones), which could be confused with milia, especially if there's associated redness.

Sweat Gland Disorders (e.g., Eccrine Poroma): Though rare, disorders of the sweat glands can cause skin lesions that might resemble milia. These conditions can sometimes be malignant, making them crucial not to miss.
Basal Cell Carcinoma: The most common form of skin cancer, which can sometimes present as small, pearly bumps. While less likely, it's critical to consider due to its potential severity.
Merkel Cell Carcinoma: A rare and aggressive skin cancer that can present as a firm, painless nodule or bump, which might be mistaken for a benign condition like milia.

Trichoepithelioma: A rare, benign skin tumor that can appear as small, skin-colored bumps. It's part of a spectrum of conditions related to hair follicle tumors.
Syringomas: Benign tumors of the sweat glands that can cause small, skin-colored or yellowish bumps, typically around the eyes but can appear elsewhere. They might be confused with milia due to their appearance.
Multiple Myxomas: Rare, benign skin tumors that can appear as small, skin-colored bumps. They are often associated with other systemic conditions (e.g., Carney complex).