What causes redness, peeling, congestion, and darkening of the glans penis?

Redness, peeling, congestion, and darkening of the glans penis may be symptoms of various skin conditions or infections. Common causes include balanitis, fungal infections, bacterial infections, and others. These conditions can lead to inflammation, redness, swelling, and peeling of the penile skin, possibly accompanied by pain or itching. In addition, prolonged friction, excessive stimulation, or use of certain irritants may also cause similar symptoms. To accurately diagnose the underlying cause, it is recommended to consult a healthcare professional for a physical examination and necessary laboratory tests (such as fungal or bacterial cultures). Treatment will depend on the specific cause and may include topical medications, oral drugs, or other appropriate therapies prescribed by a doctor. It is important to follow medical advice and maintain proper local hygiene to prevent secondary infections.