Congenital nevi are moles that are present at birth. Congenital nevi occur in about one in 100 people. These moles are slightly more likely to develop into melanoma (cancer) than are moles that appear after birth. A mole or freckle should be checked if it has a diameter of more than a pencil eraser or any characteristics of the ABCDEs of melanoma (see below).
While the unpredictability of skin tags might give off the impression that they’re uncontrollable, this isn’t entirely true. Laura Korb Ferris, MD, says that skin tags are more common in overweight or obese people, and are also associated with insulin resistance and diabetes. As such, maintaining a healthy weight may help reduce skin tag trouble. Basically, think of tags as a barometer of your health. If you live a poor lifestyle, eat a lot of saturated fats, consume too much sugar, and maintain an unhealthy BMI, your body could be alerting you there’s a problem.
While they can turn up anywhere, skin tags tend to appear where there is frequent friction, such as the neck, breasts, groin, and underarms. Ultimately, there is no evidence that skin tags will lead to any serious skin condition: They’re mostly an aesthetic annoyance. Regardless, most dermatologists encourage you to have them checked out—and removed, if you want. The only link to danger is from one study from the Indian Journal of Dermatology, which suggested that skin tags may be a sign of underlying heart issues. You could get your heart checked out, but the one research connection shouldn’t concern anyone too much.
Dr Yip notes that while it’s uncommon to experience an infected skin tag, it’s likely they may become red, inflamed and itchy if they're constantly rubbing against clothing and jewellery. “If there is infection, it is usually red, swollen and painful and may have pus discharge and a malodour [an unpleasant odour].” If this occurs, apply an antiseptic cream to mild irritations or see a dermatologist if the pain is more severe.
There are a few at-home skin tag removal kit options you can pick up from pharmacies - some products are designed to freeze small skin tags, others involve wrapping small rubber bands around the skin tag to cut off the blood supply, and we’ve also seen ones where you apply a solution to the tag and cover it in a bandaid to hinder the supply of oxygen.
The vast majority of skin tags are benign tumours but one study of 1,335 lesions found that four were basal cell carcinomas and one was a squamous cell carcinoma. Nevertheless, the authors suggest that the malignancy potential of skin tags is low. Patients experience few, if any, problems with skin tags although pruritus and discomfort can occur if the lesions are snagged by jewellery.
Treat with apple cider vinegar. Get a cotton ball and soak it in apple cider vinegar until it is totally saturated. Place the cotton ball on your skin tag and hold for a few minutes. You can move the ball in a circular motion on the skin to increase absorption if you like. Repeat this process three times per day until your skin tag falls off. This method is usually quite effective. Depending on your skin the vinegar may not be as effective so you can try using apple cider by itself. 
Mole removal can be done in either of two ways. Shaving or cutting, shaving is simply shaving the mole to the ski surface and cutting is it's removal with a scalpel, with stitching to close the bed and stop bleeding. Prices vary on size and type whether it looks benign or not, there may be a charge for pathological evaluation. Shaving cost are from 75 to 200 dollars cutting cost a little more because sutures cost more particularly the very fine sutures that are as thin as a strand of hair. (200 to 500). The procedure is painless since it is done with local anesthesia.
There is some evidence that applying a banana peel or papaya peel to a skin tag may cause it to die and fall off. It seems to be even more effective when used in combination with tea tree oil. Before bed, simply put a few drops of tea tree oil on the skin tag and then cover with a peel, securing in place with a bandage. Repeat nightly until the skin tag dies and falls off. Do not do this if you have a latex allergy or sensitivity.
Other skin conditions such as warts and moles can resemble skin tags. Since some moles may be cancerous, it’s best to have your skin tags examined by a doctor. Your dermatologist or family doctor will be able to diagnose skin tags. They’ll likely do this through a visual exam. If they have any doubt about the diagnosis, they may also perform a biopsy.