Moles and moles get bigger and discolored, be careful Huang Zhijian to analyze the risk of skin cancer |

US President Joe Biden was diagnosed with underlying skin cancer and underwent surgery to remove part of the tissue. The cancer cells have not spread and healed. We all know we should be careful when there are changes, but what what kind of changes should be made. we will be careful? Is it closely related to skin cancer? Is there any difference between birthmark and birthmark? How will the doctor determine the risk of disease? Dr. Huang Zhijian, an expert in dermatology, analyzed them one by one.

Guest host: Qiu Zhiwei

What should I do if I find a change?

If there is a sudden extra grain, which doubles or more in a few months, and the color changes suddenly from light to dark, it is doubtful whether the change occurs in a short period of time. Of course, the clinical suspicion cannot be confirmed, and minor surgery is required. Some tests need to be removed, by examining the skin tissue, if it is confirmed to be malignant; at the same time, it will depend on the type of skin cancer. The less invasive “basal” skin cancer” is resolved by local excision, but regular examinations are still needed to understand whether it will recur or grow in other areas; on the contrary, for very invasive melanoma , a lymphatic examination should be carried out after resection to find out if there is any possibility of spread.

Are moles and moles the same thing?

Moles and moles are the same. Melanocytes in the skin have benign hyperplasia and form tumors. Some are flat and some protrude. Together we call them moles or moles. Some birthmarks may disappear, originally brown or dark. The brown color gradually turns white, and most of them are benign Unless it disappears suddenly in a short period of time, you need to find a doctor for evaluation or removal some tissues to be tested;

Is it closely related to skin cancer?

Most of the colored particles or spots are benign, unless the color begins to be uneven, or much larger, the shape becomes irregular, and the border begins to fading, clinically there will be a suspicion of a lesion, but it cannot Based on clinical judgment alone, minor surgery is required to take skin tissue for laboratory tests to determine whether it is benign or malignant.

Discoloration or water leakage means there is a problem What is the reason for the redness?

You can’t judge by the color change alone. Doctors have a basic criterion of “A, B, C, D, E” when assessing whether there is a risk of lesions; Border (border), to see if the border is irregular, C is Lliw (color), to see if the color is average, if there are blood vessels that can be red, basal cell carcinoma will have angiogenesis; D is Diameter (diameter), If the diameter 癦 is more than 0.6cm, it needs to be suspected. Finally, E is Evolving (change), which is also very important. The color or shape changes rapidly in a short period of time, which becomes a key consideration.

Parents and children tend to have similar spots in similar situations. Does it mean that there is inheritance?

Skin cancer and skin cancer are partly affected by genetics, but the occurrence of acne in the same situation of parents and children does not necessarily mean genetics. Most of the locations where multiple tumors are appearing in places that are often exposed to sunlight, such as the face, back of the hands, neck, etc., so the skin The pigment is mainly related to exposure to the sun.

Dr Huang pointed out that tail color has nothing to do with food or emotions

The old people say that eating fermented soy sauce and soy sauce will make the color darker Is there any basis?

Soy sauce and tempeh have no effect on the color of pimples. There is currently no evidence in the medical field that food or emotions can affect the color of pimples. Instead, it is related to the innate color of the skin .In general, the darker the skin color, the more pimples there will be.

Does avoiding the sun reduce the appearance of acne?

We do not recommend avoiding the sun, because the sun is very important for health, it can help the body produce vitamin D, there is no problem in the light sunlight for fifteen to thirty minutes, but to avoid exposure long to the sun, if you need to do outdoor activities, you should do it well Prepare for sun protection; multiple sunburns will increase the risk, and sunburn is related to skin color The less pigmented the skin, the easier it is to get sunburned, so sunburn and skin color are risk factors.

Doctor profile

Huang Zhijian – Dermatologist, Bachelor of Medicine and Surgery, Chinese University of Hong Kong, Fellow of the Royal College of Physicists, Fellow of the Hong Kong College of Physicians, Fellow of the Hong Kong Academy of Medicine (Internal Medicine), Postgraduate Diploma in Practical Dermatology from Cardiff University.