Dehydration

Losing more fluid than is replaced can cause thirst, dry mouth, reduced urination, dizziness, and fatigue.

Common causes

Causes include diarrhea, vomiting, fever, heavy sweating, and inadequate fluid intake.

Risk factors

Severe dehydration can affect circulation and alertness.

Red flags — seek urgent care

Confusion, fainting, no urination, or very rapid pulse or breathing needs urgent medical help.

Suggested next step

Replace fluids gradually if you can drink, and seek care if you cannot keep fluids down or severe signs appear.

Symptoms linked to this condition

✓ At least one verified Saudi source and one independent global source are linked.

This page is general educational information, not a medical consultation. If symptoms are severe or worrying, contact a healthcare professional.