About 15-20 hairs on pillow in morning. Male, 36. Cause for concern? Or normal?

It is not unusual to lose 10-20 hairs per day,in fact you can normally lose 50-100.I would recommend a thorough  history and physical exam by a Dermatologist or experienced Hair Restoration surgeon to determine your cause of hair loss and recommend methods to prevent further loss.

Unless this started happening very suddenly or you can see/feel significant differences in the density of your hair still on your scalp, this doesn't seem too concerning. People can lose over 100 daily just as part of their natural hair growth cycles, depending on the density of their hair.

That is a rather high number to be seeing on one's pillow for a person who shampoos every day or two. If you always see 15, then that's a different story of course.Well it's true one can lose 50 or more hairs daily these come out with force. Spontaneous loss of 15-20 hairs on one's pillow is not typical for individuals who shampoo frequently.If you feel you are experiencing hair loss - see a dermatologist for guidance.

rjhein007, Losing hair can be normal, but in order to determine if it requires more attention, we would need some additional information on the number of days this has been occurring, hair loss history in your family or any recent medication you may have taken that can trigger hair loss as a side effect. Please provide me some photographs to make a better analysis. You are always welcome to visit a hair expert to determine the cause if it persists.

This is only a concern if this is a radical change in what you have previously experienced. Most people lose 100 hairs per day