Bald spot on head

OK dont worry yet , you need to get this tested by a doctor and see whats going on this may be a simple skin infection that they can give you meds for this , and this some times happens with a change in medicines and other type things that we do , you might have scalp infection going on and this can be cleared up , but do go to the doctor for this , and it may just be minor !

Is the area red, or tender to the touch? Is your hair dry? This may be caused by a condition called Alopecia Areata. People with alopecia areata typically lose hair on the scalp in smooth, round patches causing bald spots, typically about the size of a coin. Recent research suggests something triggers the immune system to act as if the hair follicles or hair are "foreign tissue" and must be eliminated from the body. White blood cells attack affected hair follicles and disrupt normal hair formation. The follicles become very small and grow no hair for months or years. But no matter how widespread the hair loss, the follicles remain alive and are ready to resume production when they receive the signal from the body. Alopecia areata runs an unpredictable course. It may only last for a short period of time or it may linger for years and can reoccur at any time. In many cases, hair will grow back by itself, but slowly. There is no permanent cure for alopecia areata. There are some treatments possible, such as cortisone injections or pills, topical minoxidil, and anthralin cream or ointment. See your dermatologist or primary care doc for proper diagnosis and treatment.

http://www.naaf.org/

I am 15 years old and i have bald spot on my head what can couse this

Here are some other possibilities: It could be a condition called eczema, a fungal infection called ringworm, or it could even be from someone not so playfully pulling out some hair. Only a physician can tell you for sure, so don't procrastinate.