Patient :There is an area about the size of a dime right under my knee. It's risen up a bit and is blue and purple. It's numb I can't feel anything on that spot but I have feeling around it. It's been there for as long as I remember. But I don't know what it is.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.