This is a new classification for abnormal bleeding in a non pregnant woman of reproductive age group. It stands for :
P - Polyp
M- Malignancy/ Hyperplasia
O- Ovulatory dysfunction
E- Endometrial causes
N- Not classified causes.
The classification is as such since the first 4 ones i.e. PALM can be diagnosed and measured directly by inspection or imaging techniques. The other ones need investigations other than imaging in most cases to reach a diagnosis.
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The 6 P's are: 1) Pain, 2) Pallor, 3) Pulselessness, 4) Paralysis, 5) Paraesthesia, 6) Perishingly cold.