Spots, Dermatology FAQ - Page 17

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...

Molluscum contagiosum or genital warts? Hello, Director Wu. About one or two months ago, I discovered a small, non-red, non-painful, and non-itchy lump in my lower abdomen (it is round and flat). Initially, there was only one, and I thought it was a follicular inflammation, so I ...

Keratosis pilaris occurring at the age of 40? In the past month, I have suddenly developed many dense small red spots and bumps on my buttocks, thighs, and calves. Each area feels bumpy, whereas my skin used to be smooth, with only occasional keratosis pilaris on my calves. I rea...

Erythema on the chest Hello, Doctor. A few months ago, I developed a small red patch on my abdomen (about the size of a quarter). Recently, I have noticed multiple irregularly shaped red patches appearing, primarily on my abdomen and chest (more numerous there), and one under my ...

Diagnosed with polyarteritis nodosa? Hello Dr. Wu, I discovered multiple red spots on my calf around the end of 2016. Some of them are slightly raised and cause mild pain. After resting on weekends, the symptoms seem less pronounced, but they become more noticeable after a tiring...

The body is covered with red spots? This symptom has persisted for several years. I wake up feeling normal, but after a while, red spots gradually appear around my chest, shoulders, and even the upper back. They look like a patch or resemble acne, but they are not raised, do not ...

Laser treatment for vitiligo Is it possible for CO2 fractional laser treatment to cause white spots if the energy is too strong? After my second session, the wound became red, swollen, itchy, and oozed serous fluid. Two months later, the wound has mostly healed, but there are man...

Scabies or eczema? I apologize for the inconvenience. A few nights ago, I suddenly felt itching in my thighs and armpits, but I didn't pay attention to my skin condition. It wasn't until the next morning that I noticed rashes on the inner thighs and armpits, so I immedi...

Spotty patches? Hello doctor, I have developed patchy spots on my left arm that are slightly lighter in color than my normal skin, but not as white as vitiligo. There is also some hyperpigmentation around the edges. I have a history of atopic dermatitis. What could this condition...

The keloid has a white appearance inside? I have developed a keloid on my chest that originally formed from a pimple. I have never undergone any treatment, but there is a white substance inside. Could this be a comedo or pus?

Erythema on the palm? Hello Doctor: Recently, I've noticed red spots on the palm-sized area of my hand and fingers. The spots become more pronounced as the day goes on, but they disappear after a good night's sleep. However, they reappear in the evening. I'm unsure...

There are black spots on the external genitalia? I would like to ask, if there are three black spots in the pubic area, and one of the spots feels hard to the touch, should I first see a gynecologist?

Folliculitis Hello, Doctor! Three weeks ago, I discovered red spots on my neck, so I visited the first dermatology clinic. The doctor prescribed a topical ointment, but there was no worsening or improvement in my condition. In the second week, I went to another clinic where the d...

Disinfection of items used by individuals infected with scabies? Hello, I would like to ask if a child's backpack or jacket (which is washed daily with bleach) could potentially have scabies mites? Is it possible for previously infected areas (which no longer have red spots)...

I have consulted multiple dermatologists, but the red spots have not disappeared? Hello, doctor. I have multiple small red spots on my body, some of which are expanding and appear as red circles. This condition has persisted for several years, and I have consulted multiple dermat...

Black spots on the anus? I have small black or dark-colored spots around my anus. They are not painful or itchy, but sometimes when I wipe, there is bleeding. What could this be?

Systemic allergy Why have I been experiencing widespread allergies recently? I usually don't have food or drug allergies. I have red spots appearing here and there, which resemble mosquito bites. The doctor said it's an allergy, and after getting an injection, it improv...

Pigmented lesions on the penis? Is it normal for the penis to have small, mole-like bumps that resemble hyperpigmentation and can be squeezed out?

Foreskin issues I have swelling near the head of my penis, which has been painful for the past few days. After two days, I noticed a white substance that looked like pus. After squeezing it, the swelling decreased somewhat. Now it no longer hurts, but it has turned into a large b...

Itchy skin, lumps, muscle pain? Based on your description of red patches and spots on your skin (located near the left scapula and left anterior chest) that are itchy and firm, along with intermittent muscle pain, it could be indicative of a condition such as shingles (herpes zos...