Can masturbation cause hair loss?

It is not clear that what you are describing is classic male patterned hair loss which will not impact your eyebrows. I would have to examine you.  We have a clinic in South Korea, Dr. Jino Kim and you might visit him there

The answer is absolutely yes, and when you are that is when you should really be worried. Androgenetic alopecia is characterized by miniaturization of hairs.  Every day you lose 100 hairs as part of the normal cycle of hair growth, fall and replacement.  As the hairs become more...

Green tea does not cause hair loss. You may have hair loss genes and suffer from  andro genetic alopecia .

Thank you for your question.  While constant contact with chlorine may not be the healthiest option for hair since it may cause drying out and thinning of hair, the consistent pulling from a tight fitted swim cap can also trigger a hair thinning called traction alopecia.  Be sure to...

You may want to see a dermatologist to review the cause of your eyebrow loss. It all depends on the diagnosis. For some causes of brow loss, minoxidil must be used ongoing, for others it's temporary. Please see a physician. 

They should grow back just fine. Repeated plucking/pulling can cause damage to the grafts over time but as long as there is no physical signs of damage like blood etc. the hair should grow back at a normal rate.