Which symptom is NOT commonly associated with a lack of estrogen?

Decreased perspiration is not commonly associated with a lack of estrogen. In fact, estrogen typically plays a role in making the skin more hydrated and can influence sweat gland function. When estrogen levels decline, as seen during menopause, it can lead to various changes in the skin, including increased dryness rather than decreased perspiration.

Fluctuation in blood flow, increased skin sensitivity, and possible hyperpigmentation are symptoms that can often occur due to lower estrogen levels. These symptoms are linked to the hormonal changes that affect vascularity, skin texture, and pigmentation processes. For instance, the decrease in estrogen can lead to changes in how blood vessels respond, contributing to fluctuations in blood flow; it can also make the skin more prone to sensitivity and promote changes that might result in hyperpigmentation.