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Doctor insights on: Moles And Uv Radiation

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Gamma Rays (Definition)

This is light of extremely short wavelengths typically produced either among the stars / in cosmic rays or by radioactive element decay. Gamma rays form the background of normal radiation in which we all live; it is substantially greater than the exposure we get from imaging scans or should get from ...Read more


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If moles are full of melanin, does that mean an existing mole if exposed to uv radiation won't turn to melanoma?

If moles are full of melanin, does that mean an existing mole if exposed to uv radiation won't turn to melanoma?

No, risk remains: 'moles' on the skin are nevi, essentially benign but abnormal collections or growths of melanocytes in the dermis (the layer just under the epidermis) and sometimes also in the epidermis. Uv light damages the dna in cells and when it does so in melanocytes in nevi they may be transformed into melanomas. The pigment does not protect the cells. ...Read more

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Why do we feel infrared radiation as heat, but we can't feel uv radiation?

Why do we feel infrared radiation as heat, but we can't feel uv radiation?

That is how we built: That is how we're built. It is impossible to explain rationally. We don't feel radioactivity as well. ...Read more

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What is uv radiation a and b?

The: Eiectrmagnetic produce short wavesin the rdio range, then visible light then infrared (heat) then uv a& b before low energy, then finaiiy mega-voitage densely ionizing radiation. Uv is weakly ionizing and does not penetrate. ...Read more

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What is the method called for treating keratoconus by using uv radiation?

What is the method called for treating keratoconus by using uv radiation?

Crosslinking: Crosslinking is a simple procedure that stops the progression of keratoconus. By stopping progression, it can reduce the need for a corneal transplant in patients with keratoconus. ...Read more

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Can uv radiation from the sun be similiar to the radiation used in cancer treatment?

Can uv radiation from the sun be similiar to the radiation used in cancer treatment?

Different wavelength: Ultraviolet is of wavelength / energy only slightly greater than visible light. Cancer treatment radiation is far more energetic and higher wavelength. ...Read more

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Can a cellulite body lotion be prescribed for skin of the face(hypersensitive, pron to redness, sensitive to uv radiation) without burning the face?

No: First of all, there are no cellulite cream that work and none that are prescribed. Now that we have answered that, find something that does work for your face or condition of your face. Visit a reputable dermatologist and get some answers. Good luck from nyc. ...Read more

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Can zinc oxide creme protect the eye from uv radiation when applied to the lids?

Can zinc oxide creme protect the eye from uv radiation when applied to the lids?

Transparent ZnO: Transparent zinc oxide sunscreens with a concentration of at least 7% provide excellent protection from ultraviolet a and b. Most preparations that are commercially are considered broad spectrum and should be rated with at least spf 30. ...Read more

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Can zinc oxide creme protect the eye from bad uv radiation if applied to the lids?

Can zinc oxide creme protect the eye from bad uv radiation if applied to the lids?

Lids only: Zinc oxide is a terrific blocker of uv radiation on the skin. You would not want to get it into your eye - it would disturb the vision and be uncomfortable. So it will block uv from the lids but not from the eyeball. ...Read more

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If I have a mole removed that was malignant, do I still have to be treated with radiation therapy?

Generally, no: If your margins were clear and there were no involved metastatic lymph nodes, then we would not recommend any radiation therapy. ...Read more

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How can radiation exposure and uv light cause cancer?

How can radiation exposure and uv light cause cancer?

Break dna: Knock off a base (atgc -base pairs), cause a strand break, and most lethally, cause a double strand break. We have repair enzymes, but mis-repair can cause a wrong base to be inserted, or deletion of important information leading to cancer development or promotion. ...Read more

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Lack of uv light between 270 and 300nm stops vit d production. Can the lack of a certain wavelengths of radiation stop a cancer cells growth?

Lack of uv light between 270 and 300nm stops vit d production. Can the lack of a certain wavelengths of radiation stop a cancer cells growth?

No: Please forgive my frankness. If somebody tells you otherwise, they are lying. This is as biologically preposterous as the idea that limiting certain wavelengths would end a pregnancy. Certain wavelengths of light catalyze conversion of vitamin D precursors to the real thing. Cancer is almost-healthy cells gone bad. ...Read more

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Can you tell me how could ultraviolet radiation cause skin cancer?

Can you tell me how could ultraviolet radiation cause skin cancer?

DNA mutations: Repeated uv light exposure causes breaks in your skin cells dna. Over time, these changes can cause some of the genes in your skin cell dna to change (mutate), which could eventually result in enough of a change to cause cancer. ...Read more

Dr. Meng Syn Dr. Syn
2 doctors agreed:
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How do ultraviolet rays help your bones and teeth?

Dr. Meng Syn Dr. Syn
2 doctors agreed:
How do ultraviolet rays help your bones and teeth?

No: Long term exposure to uv light is unhealthy. However, we need some uv light from the sun to produce vitamin d. Vitamin d is important in regulating bone density and osteoporosis. Vitamin d deficiencies have been linked to tooth loss, and periodontal risk factors like low bone mass. Also vitamin d may act as an anti inflammatory agent and stimulate the production of oral anti microbial peptide. ...Read more

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Can ultraviolet rays at 395-410nm be harmful to the skin?

Can ultraviolet rays at 395-410nm be harmful to the skin?

Yes: Any UV light can cause skin damage. If the exposure results in tanning then that is a sign that the skin is attempting to minimize injury. ...Read more

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Can someone get cancer from ultraviolet rays?

Can someone get cancer from ultraviolet rays?

Skin cancers : All skin cancers, including basal cell carcinoma, squamous cell carcinoma, and melanoma, appear to be related to excessive ultraviolet radiation exposure, i.e. Sunlight. ...Read more

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They make sunglasses that block ultraviolet rays. Would you buy a screen to tan under that blocked ultra?

They make sunglasses that block ultraviolet rays. Would you buy a screen to tan under that blocked ultra?

No: If such a screen really blocks all the ultraviolet then you wouldn't tan! tanning is a reaction of your skin to the damage that ultraviolet radiation causes. The cells of the skin put up little screens that try to shield the nucleus from further injury. Around 20 minutes of sun exposure a day can make your vitamin d ration. Otherwise, try to limit your exposure. ...Read more

Dr. Coyle Connolly
1,087 doctors shared insights

Moles (Definition)

A mole (also called a nevus) is a localized overgrowth of pigment-producing cells (melanocytes) in the skin. Most moles are benign. However, these cells can become cancerous. This is known as melanoma, ...Read more


Dr. Joshua Fox
525 doctors shared insights

Ultraviolet Rays (Definition)

Ultraviolet rays are a form of electromagnetic radiation (like light, x-rays, and microwaves) that can cause skin damage, tanning, skin cancer, and are a normal part of ...Read more