I get why this kind of topic shows up online, but the idea that you can tell whether a woman has or hasn’t had sex “for a long time” based on signs is not medically accurate.
There are no reliable physical or behavioral signs that indicate someone’s sexual activity status. Things people often list—like mood changes, skin condition, or behavior—are influenced by many factors such as stress, hormones, sleep, or overall health, not whether someone is sexually active.
From a medical standpoint:
Sexual activity (or lack of it) doesn’t create a clear, visible “set of symptoms”
Every person’s body and emotions respond differently
Assumptions like this can easily lead to misunderstandings or unfair judgments
If you’re asking out of curiosity about health: going without sex does not harm a woman’s body. Physical and mental well-being depend much more on things like nutrition, exercise, emotional health, and relationship.