Nails, Dermatology FAQ - Page 6

Nail dystrophy Hello Dr. Wu, I woke up last night and noticed that my right big toe was very painful. It hurt more with light pressure. When I got up to check, there was no swelling or external injury, but I noticed a faint bruise under the nail (it was very light, but compared t...

Nail bed separation Hello, doctor! I have four toenails that have separated from their nail beds. I have seen a doctor and have been applying medication for 2 to 3 months, but there has been no improvement. Could this be related to my thyroid, or is there something else going on ...

The appearance of small, pinpoint depressions on the nails? I am 18 years old and have been experiencing numerous small pits on the surface of my fingernails for the past three months. The pits are dot-like in appearance. My thumbs have the most pits, while other fingers have als...

Athlete's foot? Dyshidrotic eczema? Pure desquamation? In April 2016, the skin between my right foot's middle toe and little toe cracked open to the point where flesh was visible. After showering, the skin between my toes would turn white and rotten, and there was a sma...

Symmetrical nail shedding? Hello, doctor. I have a symmetrical peeling issue with the middle toes of both feet. Initially, the toenails gradually turned white, and then they became completely white before peeling off. This has happened once in the past couple of years, and I reca...

Congenital nevi... Should I be concerned about this? Hello doctor, I have a question about a melanonychia issue. In April of this year, I took a photo of my fingers, mainly to monitor changes in the white part of my nails. However, today I noticed that a very fine melanonychia ha...

Cutting toenails too short? If you cut your toenails too short and expose the nail groove, it can lead to discomfort, pain, and an increased risk of infection. You may experience sensitivity in the affected area. It is generally advisable to avoid tight-fitting shoes, as they can...

I want to reattach my nail to the skin? Hello, doctor. When I was a child, I heard that not trimming the edges of my nails could cause them to dig into the skin and get injured, so I started cutting off the edges of my nails. However, as I grew older, the sides of my nails began ...

Black spots on nails? Hello Doctor: Recently, over the past two months, I noticed that the upper left corner of my left big toe nail has suddenly turned black, approximately 0.3 cm in size. There is also a small black spot about 0.1 cm below it, but this is not on the surface of ...

Nail avulsion? Doctor, I was run over by a wheel last week, and the doctor at the hospital said I need to have my toenail removed. The wound has now scabbed over. Do I still need to apply medication, or should I just wait for the nail to grow back? What happens if the nail doesn&...

What should I do if the inside of my nail has turned very dark? Hello, I visited a dermatologist yesterday because I had trimmed my nails in an attempt to address the dark areas. However, the doctor informed me that this could easily lead to a bacterial infection. It was later de...

The nail has been cut but there is no bleeding? Today at work, I accidentally cut my nail near the lunula with a utility knife. There was no bleeding, but there is a deep cut. It hurts a lot when I apply pressure compared to my other healthy nails. Doctor, is there a chance that ...

The outer side of the big toe is not attached to the flesh? The outer nails of both my big toes are not attached to the skin for some reason. If I really need to trim them, I can cut them to about one-third of their depth, but I've read online that cutting toenails straight ...

Small black spots on the nails? I'm not a doctor, but if you noticed a red spot on the upper left corner of your big toe that has since turned into a small black dot, it is important to have it evaluated by a healthcare professional. While it could be a benign condition, cha...

Hair problems Doctor, last week I had my hair washed by someone who used their nails very forcefully on my scalp. At that moment, I felt like my scalp was being pulled off. When I went to work that day, I noticed that my entire scalp was extremely red. After work, when I washed m...

Nail issues The nails have been getting shorter over the past year or two. Initially, the skin on the sides of the nails started to become dry, peel, and shrink, and the nails have continued to shorten, as shown in the image. Could you please explain the possible causes?

Recently underwent carbon dioxide laser surgery for viral warts? Hello, my brother has developed several viral warts on the soles of his feet (including between the toes and under the toenails) and on the tops of his feet. The number is quite significant, and it has extended to t...

Horizontal ridges on toenails? Hello, doctor! Recently, I noticed that my toenails have some very fine horizontal lines, with a little bit on each toe. They don't feel too uneven to the touch, but they are more noticeable under light. I have taken a photo, here is the link: ...

The tissue under the nail has become necrotic? I once tried to forcefully open something, and although my nails continue to grow, the skin on the left side of my middle finger has become dry and is not adhering to the nail. How should I take a photo to show you?

Nail growth Excessive stress can lead to unconscious nail picking, causing the nail matrix to retract. As a result, the newly grown nails become very thin and uneven. I have been gradually trimming from the edges, and now my thumbnail has almost been completely cut off. The tissu...