3 doctors weighed in:

Possible mastoiditis? There's a lump behind my ear, somewhat tender.

3 doctors weighed in
Dr. Colin Kerr
Family Medicine
1 doctor agrees

In brief: Lump behind ear

Most lumps behind the ear are either an enlarged lymph node, possibly infected (if it is tender) or a sebaceous cyst (a sac of cheesy smelling oil and fat), which can be tender as it enlarges.
Mastoiditis does cause tenderness directly behind the ear, but is not usually associated with a lump except in severely advanced, untreated stages, which is unlikely.

In brief: Lump behind ear

Most lumps behind the ear are either an enlarged lymph node, possibly infected (if it is tender) or a sebaceous cyst (a sac of cheesy smelling oil and fat), which can be tender as it enlarges.
Mastoiditis does cause tenderness directly behind the ear, but is not usually associated with a lump except in severely advanced, untreated stages, which is unlikely.
Dr. Colin Kerr
Dr. Colin Kerr
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Dr. John Thaler
Dentistry - Prosthodontics

In brief: Could be

Depending upon the size, location, color, texture, fluctuance, and mobility, it may be a number of things.
Masdoiditis is among them. Often you may get a cyst behind ear, in the crease.

In brief: Could be

Depending upon the size, location, color, texture, fluctuance, and mobility, it may be a number of things.
Masdoiditis is among them. Often you may get a cyst behind ear, in the crease.
Dr. John Thaler
Dr. John Thaler
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