Common Symptoms and Hormonal Changes
The drop in estrogen and progesterone affects almost every system in the body. Symptoms vary widely: some women experience minimal disruption, while others find daily life significantly affected.
Hot Flashes and Night Sweats
Hot flashes associated with menopause are among the most recognised and studied symptoms. These are sudden waves of heat across the face, neck, and chest, often followed by sweating and a chill. When they occur during sleep, they are called night sweats. Falling estrogen affects the hypothalamus, the brain's temperature-control centre, making it hypersensitive to small changes in core body temperature.
Mood and Cognitive Changes
Estrogen plays a role in regulating serotonin and dopamine pathways. As levels fall, mood swings, irritability, low mood, and difficulty concentrating become common. These are not signs of a mental health crisis, but they are real and worth discussing with a doctor.
Sleep Disruption
Night sweats frequently interrupt sleep, but hormonal changes also affect sleep architecture independently. Many women find it harder to fall or stay asleep during perimenopause stages even without obvious sweating episodes.
Vaginal and Urinary Changes
Lower estrogen thins the vaginal walls and reduces natural lubrication, causing vaginal dryness, discomfort during sex, and sometimes more frequent urinary tract infections. This cluster is now called genitourinary syndrome of menopause (GSM).
Bone, Joint, and Metabolic Changes
Estrogen plays a protective role in maintaining bone density. In the years immediately after menopause, bone loss accelerates, raising the risk of osteoporosis over time. Joint aches, stiffness, and a shift of body fat toward the abdomen also become more common, partly from hormone changes and partly from the natural ageing process.