Bluish lesion on the scalp that often bleeds

Dear Ask The Doctor: Hey doctor i just wanted to ask u something related to my best friend and im realy worried about her. she's 17 years old and the thing is every often she puts her hand in her head she find some blood in her head and its coming from something appears suddenly and its something blue-sh in colour,and because of the she's suffering from a strong headache,she never had any injuries in her head or something like tht , tht thing just appeared suddenly and im realy worried about her.. what is tht?what she suppose to do?is it something serious? please answer me ASAP.. thanks.

Dear Noufa: I do understand your concern for your best friend health. It is difficult for me to say what the lesion is. It could either be an fungal infection or psoriasis is another possibility. In the end, it would be advisable that your friend see a dermatologist for examination and testing for the scalp lesion. I wish your friend well, take care.