Psoriasis: This is a common skin condition that can cause itching, redness, and scaly patches in various parts of the body, including the gluteal region. The gluteal area is a common site for psoriatic plaques, especially in patients with inverse psoriasis.

Eczema/Dermatitis: Atopic dermatitis or contact dermatitis can cause itching and skin lesions in the gluteal area due to allergic reactions or irritants.
Fungal Infections: Tinea infections, such as tinea glutealis, can cause itching, redness, and circular lesions in the gluteal region.
Hemorrhoids: Itching can be a symptom of hemorrhoids, especially if there is associated anal discharge or irritation.
Pruritus Ani: A condition characterized by intense itching around the anus, which can sometimes extend to the gluteal area.

Anal or Rectal Cancer: Though rare, itching in the gluteal region can be a symptom of anal or rectal cancer, especially if accompanied by other symptoms like bleeding, pain, or changes in bowel habits.
Inflammatory Bowel Disease (IBD): Conditions like Crohn's disease or ulcerative colitis can cause itching in the perianal area, including the gluteal region, due to inflammation and irritation.
Neurological Conditions: Certain neurological conditions, such as neuropathy or nerve damage, can cause itching sensations without a clear dermatological cause.

Lichen Sclerosus: A rare condition that creates patchy, white skin that's thinner than normal, which can cause itching and discomfort in the genital and anal areas, potentially extending to the gluteal region.
Keratosis Pilaris: A condition characterized by rough, dry skin, which can sometimes cause itching and may appear in the gluteal area, though it's more common on the arms and legs.
Infestations (e.g., Scabies, Lice): Though less common in the gluteal area, these conditions can cause severe itching and should be considered, especially in patients with a history of exposure.