Redness and Irritation Under the Corona: Causes and Solutions - Urology

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Swelling and redness of the coronal sulcus?


Hello Dr.
Du, after my foreskin retracted, I have noticed a red and swollen area under the coronal sulcus, which is itchy and has increased flaking, occasionally feeling slightly moist and sticky.
I would like to ask what symptoms this might indicate.
Thank you!

Niming, 20~29 year old female. Ask Date: 2021/07/23

Dr. Du Shixi reply Urology


Hello: For your reference, redness and flaking are often symptoms of an infection.
It is important to keep the area clean and dry, avoiding moisture.
When washing, do not use water that is too hot.
If symptoms do not improve within 2-3 days, you should seek medical attention.

Reply Date: 2021/07/23

More Info


The symptoms you are describing—redness, irritation, itching, and increased flaking or moistness under the corona (the ridge of the glans penis)—can be indicative of several conditions, most commonly related to inflammation or infection. Here are some potential causes and their explanations:
1. Balanitis: This is an inflammation of the glans penis, which can occur due to poor hygiene, irritation from soaps or detergents, or infections. Symptoms often include redness, swelling, itching, and sometimes a discharge. Balanitis can be caused by both irritants and infections, including yeast infections (Candida) or bacterial infections.

2. Yeast Infection: A common cause of irritation and redness in the genital area is a yeast infection, particularly if you notice a thick, white discharge or a cottage cheese-like appearance. Yeast infections can occur due to an imbalance in the natural flora of the skin, often exacerbated by moisture and warmth.

3. Contact Dermatitis: This condition arises from an allergic reaction to substances that come into contact with the skin, such as soaps, lotions, or latex from condoms. Symptoms include redness, itching, and sometimes blistering or peeling skin.

4. Psoriasis or Eczema: These chronic skin conditions can also affect the genital area, leading to red, itchy patches that may flake or become moist. Psoriasis is characterized by thick, silvery scales, while eczema may present as dry, cracked skin.

5. Sexually Transmitted Infections (STIs): Certain STIs, such as herpes or gonorrhea, can cause symptoms in the genital area, including redness, irritation, and discharge. If you have had unprotected sexual contact, it is essential to consider this possibility.


Solutions and Recommendations:
1. Maintain Hygiene: Ensure that the area is kept clean and dry. Gently wash with mild soap and water, and avoid harsh soaps or products that may irritate the skin.

2. Avoid Irritants: Identify and avoid any potential irritants, such as scented soaps, lotions, or latex products. If you suspect a contact dermatitis, switching to hypoallergenic products may help.

3. Topical Treatments: Over-the-counter antifungal creams can be effective if a yeast infection is suspected. For inflammatory conditions like eczema or psoriasis, hydrocortisone cream may reduce inflammation and itching.

4. Consult a Healthcare Provider: If symptoms persist or worsen, it is crucial to consult a healthcare provider or a dermatologist. They can perform a physical examination and may recommend tests to determine the exact cause of your symptoms. Depending on the diagnosis, they may prescribe stronger topical treatments or oral medications.

5. Avoid Sexual Activity: Until you have a clear diagnosis, it may be wise to avoid sexual activity to prevent potential transmission of infections and to allow the area to heal.

6. Stay Dry: Moisture can exacerbate many conditions, so wearing breathable cotton underwear and avoiding tight-fitting clothing can help keep the area dry.

In summary, the symptoms you are experiencing could be due to a variety of causes, including infections, dermatitis, or skin conditions. Proper hygiene, avoidance of irritants, and consulting a healthcare professional for an accurate diagnosis and treatment plan are essential steps to address your concerns effectively.

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