Understanding Sudden Dark Spots on the Scrotum After Vasectomy
Large black spots appearing on the scrotum? Hello, Doctor: I underwent a male sterilization procedure on October 29, and about two months later, I suddenly noticed a patch of skin in the middle of my scrotum that has turned black, forming a triangular shape from the midline of th...
Dr. Wu Yuxin Reply:
I cannot see your image; I recommend that you consult a dermatologist nearby for an in-person examination.[Read More] Understanding Sudden Dark Spots on the Scrotum After Vasectomy
Post-Cyst Removal: Understanding Scars and Potential Recurrence
Post-operative care for sebaceous cysts? Hello, I recently had a sebaceous cyst excised by a dermatologist. The wound has been sutured and healed, but there are still dark spots beneath the scar (similar to the color of the cyst before it was removed), and they are not raised. Co...
Dr. Wu Yuxin Reply:
I apologize, but without actually seeing the lesion, I cannot make an accurate assessment. I recommend that you have the surgeon evaluate it again.[Read More] Post-Cyst Removal: Understanding Scars and Potential Recurrence
Managing New Skin Spots After 30: When to Seek Medical Advice
Small black spots that appear after the age of 30? Doctor, I'm really sorry, but I forgot to ask you: For new dark spots (like moles) that appear after the age of 30, is the management the same as for those that appeared before 30? Should I first monitor them closely using t...
Dr. Wu Yuxin Reply:
Similarly, continuous observation can be maintained based on the principles.[Read More] Managing New Skin Spots After 30: When to Seek Medical Advice
Effective Acne Treatment: A Guide to Using AHA and Retinoids
Acne treatment Hello, Doctor: Q1: Would you recommend alternating the application of tretinoin (A acid) and mandelic acid for treatment? Q2: Following up on the previous question, if it is recommended, what should be the order of application? Q3: I have redness and dark spots ...
Dr. Wu Yuxin Reply:
It is not recommended to use them on the same day. The method of use should be discussed with the physician who prescribed them to you. Without examining the actual skin lesions, an online consultation cannot provide a prescription recommendation.[Read More] Effective Acne Treatment: A Guide to Using AHA and Retinoids
Understanding Dark Spots on the Areola: Causes and Treatments
Areola hyperpigmentation Dear Dr. Wu, I previously consulted you regarding some concerns I have. I have 2 to 3 dark spots on my left areola, each approximately 0.3 cm or smaller, oval in shape, and generally brownish-black in color. They are slightly raised above the surface of ...
Dr. Wu Yuxin Reply:
Seborrheic keratosis can indeed occur on the areola, but the likelihood of lesions developing due to friction is quite low, so there is no need for excessive concern. If there is worry about the lesions, surgical removal is recommended, as both laser and cryotherapy may leave res...[Read More] Understanding Dark Spots on the Areola: Causes and Treatments
Common Skin Concerns: Understanding Dark Spots and Traumatic Tattoos
Inquiry for clarification? Dear Dr. Wu, I have two questions regarding skin issues that I would like to consult with you: 1. Regarding the flat dark spots on the sides of my feet: I have a flat dark spot (or dark macule) approximately 0.1 to 0.2 cm in size located about 2.5 cm ...
Dr. Wu Yuxin Reply:
1. Is it a pigment deposition caused by simple friction, or is it the formation of an actual mole? A physical examination is necessary to determine this. 2. Tattoos resulting from trauma are primarily a matter of aesthetic consideration; if not removed, they will not pose any adv...[Read More] Common Skin Concerns: Understanding Dark Spots and Traumatic Tattoos
Understanding Sudden Dark Spots on the Scrotum After Vasectomy
Large black spots appear on the scrotum? Hello Doctor: I underwent a male sterilization procedure on October 29, and about two months later, I suddenly noticed a patch of skin in the middle of my scrotum that has turned black, forming a triangular shape from the midline of the sc...
Dr. Wu Yuxin Reply:
The referral has already been issued, so why haven't you gone for medical treatment yet? Without seeing your actual condition, I cannot make a proper assessment.[Read More] Understanding Sudden Dark Spots on the Scrotum After Vasectomy
Achieving a Tan Safely: Sunscreen Tips for Healthy Skin
Do not inhibit melanin? Sunlight can cause skin aging; however, if you desire a deeper skin tone, are there recommended sun protection or skincare methods that can effectively prevent dark spots and skin cancer while still allowing for tanning?
Dr. Wu Yuxin Reply:
Currently, there may not be a perfect solution that satisfies both sides.[Read More] Achieving a Tan Safely: Sunscreen Tips for Healthy Skin
Understanding Scabies: Misdiagnosis, Treatment Challenges, and Recovery
Scabies issues? Hello Doctor, I previously had a scabies infection that did not improve after several months of treatment, and I consulted different doctors who diagnosed me with eczema, fungal infections, and sweat dermatitis. It wasn't until April of this year, when I retu...
Dr. Wu Yuxin Reply:
You need to see it to know; the symptoms of scabies and dyshidrotic eczema can be quite similar, and it is necessary to examine other areas to make a definitive diagnosis.[Read More] Understanding Scabies: Misdiagnosis, Treatment Challenges, and Recovery
Understanding Skin Issues: Dark Spots Under Eyes After Sun Exposure
Skin issues Hello, Doctor. This morning when I woke up and washed my face, I noticed a dark spot under my eyes that looks like a blemish, but it wasn't there a few days ago. I only noticed it after going hiking yesterday, where I might have been exposed to too much sun. Addi...
Dr. Wu Yuxin Reply:
We cannot perform online diagnoses in this manner; we recommend that you see a dermatologist for evaluation and treatment as soon as possible.[Read More] Understanding Skin Issues: Dark Spots Under Eyes After Sun Exposure
Understanding Dark Spots on Toenails: When to Seek Medical Advice
A black spot on the toenail? Hello, doctor! Recently, I noticed a dark spot on my left big toe nail. I don't recall any injury, and it doesn't hurt when I press on it. A few days ago, it looked somewhat like a bruise, purple but not very noticeable, but today it has tur...
Dr. Wu Yuxin Reply:
No lesions were observed, making it difficult to determine the issue. If this is causing significant distress, please seek medical attention promptly.[Read More] Understanding Dark Spots on Toenails: When to Seek Medical Advice
Understanding Dark Spots on Knees: Causes and Treatment Options
Knee hyperpigmentation Hello Doctor, I haven't injured my knee recently, but I have developed some painless and itchy black spots, as shown in the image. I would like to inquire about the possible causes and how to improve this condition, as well as whether I should seek med...
Dr. Wu Yuxin Reply:
I'm sorry, but current medical regulations do not allow for online diagnoses in this manner. If it is inconvenient to visit a hospital or clinic due to the pandemic, you may consult dermatology clinics that offer telemedicine services, which can provide you with the necessar...[Read More] Understanding Dark Spots on Knees: Causes and Treatment Options
Understanding Dark Spots Under Fingertip Skin: Causes and Concerns
Grayish lumps in the skin at the fingertips? Hello doctor, about a month ago I noticed a small dark spot on the tip of my right middle finger that is a brownish-gray color. It seems to be located deeper in the skin, is not raised, and does not hurt. I didn't pay much attenti...
Dr. Wu Yuxin Reply:
Without actually seeing the lesion, it is impossible to determine. If it is very concerning, please seek medical attention as soon as possible.[Read More] Understanding Dark Spots Under Fingertip Skin: Causes and Concerns
Understanding Dark Spots Under Thick Skin: When to Seek Medical Advice
Melanin in the thick dermis? Hello Doctor, my mother had surgery last year to remove a precancerous lesion of melanoma found on her toe. Recently, we noticed a black dot under a translucent thickened area of skin on her foot. She thinks it might just be dirt. I would like to ask ...
Dr. Wu Yuxin Reply:
1. It may not necessarily be excluded, such as in cases of post-traumatic tattoos. 2. It depends on the clinical situation.[Read More] Understanding Dark Spots Under Thick Skin: When to Seek Medical Advice
Understanding Skin Concerns: Asymmetrical Moles and Dark Spots
Prepuce issues 1. Are asymmetrical moles with uneven color and one raised and one flat necessarily bad moles? 2. Is a large, dark brown area on the foreskin that is not scaly a black spot?
Dr. Wu Yuxin Reply:
No lesions were observed, and it is not possible to determine the issue. If it is causing significant distress, please seek medical attention promptly.[Read More] Understanding Skin Concerns: Asymmetrical Moles and Dark Spots
Understanding Skin Concerns: Distinguishing Between Moles and Dark Spots
Foreskin issues I would like to ask: I read online that the surface of a black spot is flat, while a mole is raised. Is that true? Also, I have a dark brown area on my foreskin that seems flat; could that be a black spot? Can black spots be black in color? Thank you.
Dr. Wu Yuxin Reply:
Not entirely correct; seborrheic keratosis can also be raised, and its color can range from skin tone, brown to black.[Read More] Understanding Skin Concerns: Distinguishing Between Moles and Dark Spots
Understanding Dark Spots Under Nails: Causes and Concerns
The area under the nails appears dark? Last week, I suddenly noticed that my nail looked dark. I thought it was dirt from the skin under the nail, but it wouldn't wash off. I even tried to pick at it with a needle, but couldn't get anything out. I'm also worried th...
Dr. Wu Yuxin Reply:
Medical regulations state that "a physician may not administer treatment or prescribe medication without personally examining the patient," which also means that online diagnosis is not permitted. Alternatively, you could inquire which clinics offer remote medical servi...[Read More] Understanding Dark Spots Under Nails: Causes and Concerns
Understanding Dark Spots on the Inner Thigh: Causes and Concerns
Dark spots on the buttocks? There is a dark bruise-like spot on the inner side of my buttocks that does not hurt when pressed. I couldn't find similar cases online, and I would like to ask if the doctor knows the cause.
Dr. Wu Yuxin Reply:
No lesions were observed, making it impossible to determine the issue.[Read More] Understanding Dark Spots on the Inner Thigh: Causes and Concerns
Effective Solutions for Treating Back Acne and Dark Spots
Improvement of back acne? Hello Doctor: I have been experiencing long-term blackheads, back acne, and brown acne marks on my upper back. I have been changing my clothes frequently and regularly changing my bed linens, but there hasn't been much improvement. What can I do to ...
Dr. Li Yufen Reply:
Hello: Initially, you may consider using over-the-counter acne treatment products from drugstores, such as glycolic acid or mandelic acid. If the condition does not improve, you can consult a nearby dermatologist for diagnosis and treatment. Thank you![Read More] Effective Solutions for Treating Back Acne and Dark Spots
Understanding Dark Spots on the Chest: Should You Worry About Skin Cancer?
Dark spots appearing on the lower chest? Because it is located directly below the chest and I haven't seen it, I don't know how long it has been there. I only discovered it yesterday. It is slightly raised, resembles a mole, but is light brown in color, and it is not pa...
Dr. Wu Yuxin Reply:
No lesions were observed, making it difficult to determine the issue. If you are very concerned, please seek medical attention promptly.[Read More] Understanding Dark Spots on the Chest: Should You Worry About Skin Cancer?