Most moles are unnoticeable and do not require removal. Obvious moles that are dark, bumpy or just simply irritating, are the ones primarily considered for removal. Those who are conscious about how they look may consider this quick cosmetic enhancement. Healthwise, any mole that changes in appearance, must be promptly checked to ensure that it is not cancerous.
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.