What is pregnancy toxemia in dogs and cats?

Pregnancy toxemia refers to a serious metabolic imbalance in pregnant or postpartum animals, commonly presenting as decreased appetite, weakness, or seizures. If you have concerns, seek veterinary care promptly and follow your vet's guidance.

What first steps can owners take at home?

Start by recording when symptoms began, how much your pet has eaten, and any video of abnormal behavior. Keep your pet calm and warm, then contact your vet or prepare to go to the clinic immediately. Do not give medications or force-feed without veterinary instruction.

What tests does the vet typically run to find the cause?

The vet will begin with a physical exam, followed by blood and biochemistry tests, urinalysis, and abdominal ultrasound. Continuous vital sign monitoring or specialist imaging may be added if needed.

How can the risk be reduced or the condition prevented?

Regular prenatal check-ups during pregnancy, adequate nutrition, and close postpartum monitoring can reduce the risk. If there is a prior history of this condition, discuss a prevention plan with your vet before and after delivery.

How much do the tests and treatment usually cost?

Costs vary by clinic and region — ask your vet for an estimate before proceeding.

Disease Guide

Pregnancy Toxemia in Dogs & Cats: Symptoms, Diagnosis & Care [2025]

A metabolic crisis in late pregnancy requiring urgent treatment

Take 1 minute to check the symptoms first

Last updated: 2026/01/06

PetHealthMap Editorial Team

Sources: AVMA, WSAVA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek Emergency Care Immediately

•Continuous seizures or sudden loss of consciousness with no response
•Unable to stand, persistent collapse, or pale mucous membranes
•Rapid breathing or bluish/white lips and gums

Schedule a Veterinary Visit Soon (Within 24–72 Hours)

•Significantly reduced appetite or prolonged refusal to eat
•Markedly decreased activity level or lethargy
•Intermittent collapse or slow, unsteady gait

01What symptoms indicate something is wrong?

Pregnancy toxemia can range from subtle changes in mental alertness to sudden severe neurological signs. The condition can progress rapidly, so close monitoring is essential.

Lethargy, slow responses, or excessive drowsiness
Reduced activity level, appearing weak or exhausted
Noticeably decreased appetite or complete refusal to eat
Collapse, inability to stand, or altered consciousness
Intermittent or continuous seizures or muscle tremors
Unsteady gait, stumbling, or frequent falling

Seek emergency care immediately if you notice the following symptoms:

⚠️ Continuous seizures or sudden loss of consciousness with no response
⚠️ Inability to stand, persistent collapse, or pale gums
⚠️ Rapid breathing or blue-white discoloration of the lips or gums

02How to assess the situation at home: key observations and when to go to emergency

Observing and recording at home helps the vet assess the condition and timeline. Please document the timing and changes as accurately as possible.

Note the time when symptoms were first noticed and how they have progressed
Observe whether alertness and activity level have decreased compared to normal
Record daily food intake and any instances of food refusal
Monitor urination and defecation frequency, volume, and any changes in color
Weigh or estimate your pet's weight regularly and keep a record
Record video of any seizures or unusual behaviors for the vet to review

03How will the vet make a diagnosis? Common examination steps

At the clinic, the vet will begin with a physical exam and follow up with blood tests and imaging to identify the cause and assess severity.

Full physical exam

assessing alertness, body temperature, and degree of dehydration

Complete blood count

checking for anemia, white blood cell count, and coagulation status

Biochemistry panel

evaluating liver and kidney function and electrolyte imbalances

Urinalysis

assessing kidney function and metabolism-related changes

Abdominal ultrasound

examining the uterus, fetuses, or postpartum complications

X-ray

evaluating fetal positioning, number, and related complications

Real-time monitoring or specialist imaging if indicated

04Treatment and aftercare: medications, dietary changes, and home care guide

Treatment depends on severity and may include hospitalization or supportive care. Ongoing home monitoring and follow-up visits after discharge are equally important.

Hospitalization with IV fluids and close monitoring of vital signs may be required
Dietary adjustments to restore energy and maintain electrolyte balance
Scheduled follow-up visits with blood and biochemistry recheck
Continued monitoring of food intake, alertness, and elimination at home
Return to the clinic promptly if symptoms worsen, or go to a clinic with obstetric experience
Some cases may require specialist evaluation or obstetric intervention

05What to prepare before seeing the vet: key information to help the vet quickly identify the cause

Write down when symptoms first appeared and how they have changed over time

Record food and water intake in the past 24 hours and any vomiting episodes

Note urination and defecation frequency, color, or any abnormalities

List all current medications and supplements your pet is receiving

Prepare and back up any video or photos on your phone to bring to the clinic

It is recommended to book at a clinic equipped for blood tests and ultrasound

This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.