Thanks for your query.
Skin patch at the back of the head which is bleeding for 2 years and hair growing out of it can be due to many reasons. The best solution to the problem is to consult a Dermatologist for proper diagnosis and treatment.
The possible causes can be:
Seborrheic dermatitis patch.
Rare chance of some skin cancer.
Hence the need for proper diagnosis as treatment of every cause is totally different and your patient is suffering for 2 years, a long time to have such a problem.
I hope this answer helps you to get an early and proper diagnosis and treatment.
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.