The humanitarian situation in Taiz, Yemen's third-largest city, has deteriorated sharply in recent weeks as Iran-backed Houthi forces have tightened their encirclement, cutting off supply routes and driving water, food, and fuel to crisis levels. Families who previously used around ten liters of bottled water a day for drinking and cooking are now making the same amount last four days, rationing every drop and abandoning the most basic daily habits.

The crisis traces to a fresh escalation in fighting that began in September, when Houthi forces retook the port city of Mocha and eventually encircled Taiz by early October, severing the critical Taiz-Aden corridor. With fuel supplies plummeting, the city's water utility has been unable to maintain operations, desalination plants are running well below capacity, and truckers who still dare the dangerous journey have in some cases tripled their rates to ferry water into the city.

Aid organizations and UN agencies report that Taiz province has absorbed roughly half of the 250,000 people displaced by the broader fighting since August — an estimated 124,000 additional people now competing for already scarce resources. The accumulation of uncollected garbage along major roads has raised urgent alarm about disease outbreaks, with waste collection largely halted because sanitation workers can no longer safely reach the main dumping site due to nearby clashes.

Yemen's internationally recognized government has warned of an "imminent health and humanitarian catastrophe," citing near-depletion of medicines and intravenous fluids at health facilities and warning that fuel shortages now threaten ambulances and the cold chains keeping vaccines usable. The UN has described the situation as "devastating" and warned that wheat and flour stocks in the city could run out within weeks.