Our expert says:
Yes please see a doctor - brown spots on the skin that suddenly appear, change shape or colour, are bigger than 4mm or have irregular borders could be a melanoma, a particular dangerous kind of skin cancer. Rather have it checked out so that if it is, you can have it attended too before it infiltrates too deep.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.