Night sweats

What it means

Occurrence of excessive sweating during sleep.

Nighttime sweating is a symptom linked to menopause, malignancies, autoimmune diseases, and infections.

Rare diseases that can present with this22

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Nocturnal hyperhidrosis