Symptoms of dehydration in women

Fluid needs can be affected by heat, exercise, fever, vomiting, diarrhoea, travel and a busy routine that makes drinking easy to forget. Some women may also lose fluid with heavy menstrual bleeding or during pregnancy, when nausea makes drinking difficult. Thirst, dry mouth, darker urine, reduced urination, headache and tiredness can occur together. These symptoms are not specific, so ongoing or unusual changes should be assessed.

Cloudy urine, burning, pelvic pain or fever may suggest a urinary infection. Severe one-sided back pain may have another cause. Constipation can accompany low fluid intake but can also result from medicines or changes in diet.

Take regular small drinks and include fluid-rich foods if comfortable. Rest away from heat and replace fluids gradually after exercise or sweating. If vomiting or diarrhoea is involved, ask a pharmacist or clinician about an oral rehydration solution. During pregnancy, breastfeeding or a chronic illness, obtain personalised advice if symptoms are significant. Do not stop prescribed treatment without speaking with the prescriber.

Obtain urgent help for fainting, confusion, inability to drink, repeated vomiting, severe weakness, very little urine, chest pain or difficulty breathing. Seek prompt assessment for heavy bleeding with dizziness, persistent symptoms, fever, painful urination, blood in urine, severe abdominal pain or symptoms that worsen despite rest and fluids.

Ask whether menstrual loss, pregnancy, breastfeeding, medicines or another illness may be contributing, how much fluid is appropriate for you, and whether testing is needed.