Nevus, otherwise called a mole, is a common and harmless skin spot formed due to the collection of pigmented skin cells. They can be black, brown, tan, or pink in color. Some of the common types of nevi are congenital nevus, common nevus, blue nevus, halo nevus, Spitz nevus, and Reed nevus. If the color, shape, or size of the nevus changes suddenly, consult a doctor.

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I noticed a red lesion on the back of my head. What is the cause?

Query: Hello doctor, I noticed a lesion on the back of my head. It is flat, mostly red in color, and a bit darker red or brown on the edges. It does not itch, and I do not think that it is related to any allergies. What could this be?  Read Full »

Dr. Chaitra Prakash

Answer: Hi, Welcome to Since how long is it been there? Does it hurt when you comb your hair? Has it bled anytime? Revert with more information to a dermatologist online -->  Read Full »

Why do I have a faint line on my finger?

Query: Hello doctor, I have a faint line on my finger from past ten days. I am attaching a picture of the same. What is it?  Read Full »

Dr. Suvash Sahu

Answer: Hi, Welcome to I have read your concern and examined your picture (attachment removed to protect patient identity).  There is nothing to worry, it is a single nail melanonychia. Nothing actively needs to be done. For further queries consult a dermatologist online --> https://www.icl...  Read Full »

I have a lesion that changes color frequently. What to do?

Query: Hi doctor, I have attached a photo for your reference. Is this sign dangerous? It started almost 20 years ago to become dark and it became to be lighter around 5 years ago. Two days ago, again I have noticed this transformation with a white surface and that is healing now. It is around 4 mm. Please ...  Read Full »

Dr. Atishay Bukharia

Answer: Hi, Welcome back to Is there any complaint in it? How many such lesions are there? Revert back with the answers to the above questions to a dermatologist online -->  Read Full »

I notice a bump on the mole on my chin. Is this melanoma?

Query: Hi doctor, I am a 28-year-old female. I have always had a small, raised, symmetrical mole on the right side of my chin. It has always been very benign and had a hair growing out of it that I consistently plucked. About two weeks ago, I noticed a small, shiny whiteish bump on the mole and called my d...  Read Full »

Dr. Kakkar

Answer: Hello, Welcome to I have noted your concern and I have viewed the images (attachment removed to protect patient identity). It looks to be a pretty benign nevus to me. Well defined, uniform colored, small, rough to oval, and symmetrical. I think the nevus perhaps has an ingrown hair ...  Read Full »

Can a dark spot in a thigh be melanoma?

Query: Hello doctor, I found a very small dark spot on my thigh today. To the best of my recollection, I have never seen it before. Now, of course, I am thinking the worse and believe I have melanoma. I am olive-skinned. I have never had an issue with moles or dark spots before. My mom had a pre-cance...  Read Full »

Dr. Snehal Laul

Answer: Hello, Welcome to I have seen the pictures (attachment removed to protect patient identity). No, it is not melanoma. It is a normal nevus (benign). For your confirmation, you can go for an excisional biopsy of the lesion. Histopathology reports will confirm that the lesion is benign...  Read Full »

Why do I have dark lesions on my thigh?

Query: Hi doctor, I have had first larger and dark lesion that is bump behind my left knee, since I do not know when, but it certainly not since birth. I noticed it before two to three year and from that time the lesion is the same and has no pain. Now, there is this another small lesion have appeared on t...  Read Full »

Dr. Jyotisterna Mittal

Answer: Hi, Welcome to The darker one is the lesion of lichen sclerosus chronicus. For this, you may apply Tenovate GN cream (combination of Clobetasol Propionate and Neomycin sulfate) over it twice daily for two weeks. The skin colored lesion may be an acquired nevus. A skin biopsy is require...  Read Full »

How are moles under the nails treated?

Query: Hello doctor, I have moles under the nails of each of my big toes. They appeared over the last months, but I do not remember exactly when. The one on my left toe is a round dot in addition to a diagonal line next to it and that goes to the right edge of my nail, while the one on my right toe is just...  Read Full »

Dr. Atishay Bukharia

Answer: Hi, Welcome to Is there any pain? Any change in placement noticed as the nail grows? Revert back with answers to the above questions to a dermatologist online -->  Read Full »

What could be the chance of a mole with no pain or itch turn malignant?

Query: Hi doctor, My son is 6 years old. He has one black mole on the left hand measuring about 5 mm in diameter with some elevated surface. It is from the last about one year and looking growing but can not sure about the growth. He has no complaint of itching and pain but when asked yesterday about this...  Read Full »

Dr. Subhash Kashyap

Answer: Hi, Welcome to I have seen the pictures. (attachment removed to protect patient identity). This is a mole in medical terms it is called melanocytic nevus. Majority of them are benign and go through growth cycle of inapparent to getting dark and with age slowly losing the color. But i...  Read Full »

I have fatigue and lightheadedness with enlarged lymph nodes below the jaw. What can cause this?

Query: Hello doctor, I have been looking for the cause of my constitutional symptoms including lightheadedness and fatigue. I have enlarged lymph nodes, with the biggest being behind my jaw just under my ear on the left side. I used a camera to look inside of my ear, and I found a concerning discolored a...  Read Full »

Dr. Syed Tehmid

Answer: Hello, Welcome to The area of discoloration does seem to be something like a nevus. Though uncommon nevus can occur in the external auditory canal. Otherwise, your external auditory canal and TM (tympanic membrane) are normal and are not a source of fatigue and lightheadedness. Did y...  Read Full »

Will a birth mark in small child cause any health risk in future?

Query: Hi doctor, This is about my 3.5-year-old son. Just after a couple of months of his birth, a light reddish spot appeared below his nose (please see pictures). Now it has grown as dark brownish, textured spot and appears to be growing with the body. Although it does not make any physical problem to ...  Read Full »

Dr. Divakara P

Answer: Hi, Welcome to I looked into the pictures of your son (attachment removed to protect patient identity) and can understand your concern. It is a simple nevus (common mole). Regarding future health risk, most of the common mole does not cause any problem except they may grow in size....  Read Full »

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