Home » Diseases » In dogs » Eclampsia (Milk Fever)

Eclampsia (Milk Fever) in Dogs

Occurrence: rarer
Location of disease: General/Whole body

Author: Dr. med. vet. Gisa Löwe | Last modified: 17.02.2026

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Definition

Eclampsia, also known as milk fever, is an acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention., life-threatening condition in lactating female dogs caused by a sudden drop in blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels, typically occurring in the first weeks after birth.

The most important facts at a glance

Eclampsia, also known as milk fever, is a serious condition in nursing female dogs caused by a sudden drop in blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels. This condition occurs when the female dog’s body cannot provide enough calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. to meet the increased demand during milk production. Common symptoms include trembling, restlessness, dilated pupils, and in severe cases, seizures. DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is made through clinical symptoms and blood tests showing low blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels.

Treatment requires immediate veterinary intervention, particularly intravenous administration of calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. to relieve symptoms. Long-term, dietary adjustment is important to prevent recurrentRecurrent refers to a disease that repeatedly returns or worsens after a temporary remission or improvement. calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. deficiencyDeficiency means a lack or absence of a necessary substance required for normal bodily functions or health, such as vitamins, minerals, or hormones.. Preventive measures include a balanced diet during pregnancy and lactationLactation refers to the production and secretion of milk by the mammary glands of female mammals after giving birth. It serves to nourish the offspring. Lactation problems in dogs and cats can cause health problems for both mother and puppies/kittens., regular veterinary examinations, and if necessary, limiting the number of puppies to care for. Research focuses on new nutritional concepts, genetic factors, and improved diagnostic procedures to minimize the risk and severity of eclampsia. With early diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. and treatment, the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. is generally good, but delayed treatment can lead to complications.

Causes

Eclampsia occurs when the female dog’s body is unable to provide enough calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. to meet the increased demand during lactationLactation refers to the production and secretion of milk by the mammary glands of female mammals after giving birth. It serves to nourish the offspring. Lactation problems in dogs and cats can cause health problems for both mother and puppies/kittens.. CalciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. is an essential mineral that plays an important role in various physiological processes, particularly in muscle contraction and nerve conduction.

During lactationLactation refers to the production and secretion of milk by the mammary glands of female mammals after giving birth. It serves to nourish the offspring. Lactation problems in dogs and cats can cause health problems for both mother and puppies/kittens., calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. requirements increase dramatically, as the female dog needs large amounts of calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. for milk production. When calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. intake or mobilization from the bones is insufficient to meet this demand, blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels drop, which can lead to neuromuscularNeuromuscular refers to the relationship between nerves and muscles, particularly the transmission of nerve impulses that trigger muscle contraction. Neuromuscular disorders can affect movement and coordination in animals. symptoms.

The causes of eclampsia are varied and can be both nutritional and metabolicMetabolic refers to metabolism, i.e. the entirety of chemical processes that take place in a living organism to enable life processes. Metabolic disorders can cause a variety of Diseases in Dogs and cats. in nature. Female dogs that received an unbalanced diet during pregnancy are at higher risk, as they may not have built up sufficient calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. reserves.

Another factor can be genetic predispositionA predisposition is an innate inclination or susceptibility of an organism to certain diseases or conditions. In dogs and cats, there may be a genetic predisposition to certain conditions such as hip dysplasia or certain heart diseases., as some dog breeds are more susceptible to eclampsia than others. Small dog breeds are more frequently affected, as they have relatively fewer calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. reserves to meet the increased demand.

Symptoms

Common symptoms:

The symptoms of eclampsia often develop rapidly and include restlessness, panting, trembling, and muscle seizures. The female dog may also show an increased heart rate and difficulty breathing, which is due to the disrupted calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. balance.

In severe cases, neurological symptoms such as disorientation, convulsions, and even comaA coma is a deep state of unconsciousness where an individual cannot be awakened and does not respond to stimuli. In dogs and cats, it can be caused by severe illnesses, poisoning, or neurological problems. can occur. Without timely treatment, eclampsia can progress rapidly and become life-threatening.

Female dogs suffering from eclampsia may also show behavioral changes, such as aggressiveness or excessive nervousness. These symptoms are often a sign that the condition has already progressed and immediate veterinary care is required.

Diagnosis

The diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of eclampsia is based on a combination of clinical symptoms and blood tests. Low blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels are the primary diagnostic criterion for this condition.

Additionally, further diagnostic tests may be performed to rule out other possible causes of the symptoms, such as infections or other metabolicMetabolic refers to metabolism, i.e. the entirety of chemical processes that take place in a living organism to enable life processes. Metabolic disorders can cause a variety of Diseases in Dogs and cats. disorders. A complete medical historyThe medical history is the systematic collection of a patient's medical history through questioning. It includes information about previous illnesses, treatments, allergies, and lifestyle habits. and thorough physical examination are also important for making an accurate diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients..

In some cases, the veterinarian may also order an X-rayX-ray is an imaging technique that uses X-rays to create images of the inside of the body. It is often used to diagnose bone fractures, lung diseases, and other conditions. or ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow. examination to assess the female dog’s overall health and rule out other complications.

Therapy

Treatment of eclampsia requires immediate veterinary intervention. The most important measure is intravenous administration of calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. to quickly raise blood levels and relieve symptoms.

In some cases, the female dog may also need other supportiveSupportive refers to supportive treatments that aim to alleviate symptoms and improve quality of life without directly treating the underlying cause of the disease. treatments, such as fluid therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. to prevent dehydrationDehydration occurs when the body loses more fluid than it takes in. This can lead to a number of problems, including headaches, Dizziness, and in extreme cases, renal failure or Cardiovascular collapse. and oxygen therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. to support respiratoryRespiratory refers to breathing or the process of breathing. Respiratory diseases affect the respiratory tract and can impair the ability to breathe effectively. function.

After the acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention. symptoms are brought under control, it is important to closely monitor the female dog and adjust her diet if necessary to prevent recurrent calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. deficiencyDeficiency means a lack or absence of a necessary substance required for normal bodily functions or health, such as vitamins, minerals, or hormones.. This can be done through the administration of calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. supplements or a special diet.

Prognosis and follow-up care

The prognosis for female dogs with eclampsia is generally good if the condition is detected and treated early. With rapid and appropriate therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions., most female dogs can recover completely.

However, inadequate or delayed treatment can lead to serious complications that may worsen the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop.. In severe cases, permanent neurological damage can occur despite treatment.

Long-term, it is important to address the underlying causes of eclampsia to minimize the risk of recurrence. This often requires collaboration between the veterinarian and the pet owner to develop an appropriate nutrition and care plan.

Prevention

PreventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. of eclampsia begins with a balanced and nutrient-rich diet during pregnancy and lactationLactation refers to the production and secretion of milk by the mammary glands of female mammals after giving birth. It serves to nourish the offspring. Lactation problems in dogs and cats can cause health problems for both mother and puppies/kittens.. Adequate calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. intake is crucial to ensure that the female dog has sufficient reserves to meet the increased demand.

It is also important to have the female dog examined regularly by a veterinarian to monitor her health and detect potential problems early. The veterinarian can provide specific recommendations for nutrition and supplementationSupplementation is the addition of nutrients, vitamins, or other substances to a normal diet to compensate for deficiencies or to support general health and well-being. In dogs and cats, supplementation may vary depending on their health condition and nutritional needs. based on the individual needs of the female dog.

Another preventive approach is limiting the number of puppies a female dog cares for, especially in small breeds or female dogs that have already had an episode of eclampsia. In some cases, supplemental feeding of the puppies may be necessary to reduce stressStress refers to the state of an organism reacting to external stimuli or demands. In veterinary medicine, stress can have physical or psychological effects on animals, impacting their health and well-being. on the mother.

Through careful planning and monitoring, many cases of eclampsia can be prevented, leading to improved quality of life for the female dog and her puppies. Further information on the preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. and treatment of eclampsia can be found in [Veterinary Practice](https://www.tieraerztliche-praxis.de).

Outlook on current research

Eclampsia, also known as milk fever, is a serious and potentially life-threatening condition that primarily occurs in nursing female dogs. It is caused by a sudden drop in blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels. Current research is intensively focused on the preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. and treatment of this condition. One focus is on the development of new nutritional concepts for pregnant and nursing female dogs to minimize the risk of calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. deficiencyDeficiency means a lack or absence of a necessary substance required for normal bodily functions or health, such as vitamins, minerals, or hormones.. These include specially formulated feeds that have a balanced calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. and phosphorusPhosphorus is a vital mineral found in bones and teeth, playing a central role in energy metabolism and DNA. A balanced phosphorus to calcium ratio is essential for the health of dogs and cats. content and optimize the absorptionAbsorption refers to the uptake of substances by living cells or tissues. In the context of veterinary medicine, it often refers to the absorption of nutrients, drugs, or toxins from the digestive tract into the bloodstream. of these important minerals.

Another aspect of research focuses on the genetic factors that could increase the risk of eclampsia. By identifying genetic markers, scientists hope to recognize risk groups early and take targeted preventive measures. This could help reduce the frequency and severity of the condition in the dog populationIn veterinary medicine, the term population refers to a group of animals of a particular species living in a specific geographic area or environment..

The development of new diagnostic procedures is also an important research field. Current studies are investigating the effectiveness of blood tests that can measure calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels quickly and reliably to enable early diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients.. These tests could become part of routine examinations for pregnant and nursing female dogs in the future to detect and treat eclampsia in time.

There are also research approaches focused on the treatment of eclampsia. These include new medications that can quickly stabilize blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels, as well as alternative therapeutic approaches aimed at improving the overall health and well-being of the female dog. These studies could lead to innovative treatment strategies that improve the management of the condition.

Overall, current research shows promising approaches for improving the preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring., diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients., and treatment of eclampsia in dogs. These advances could lead to a significant reduction in case numbers and an improvement in the quality of life for affected animals and their owners in the future.

Frequently asked questions (FAQs)

What is Eclampsia in dogs?

Eclampsia, also known as milk fever, is a condition caused by a sudden drop in blood calcium levels in nursing female dogs. It usually occurs in the first weeks after the birth of puppies and can be life-threatening if not treated quickly. -

What symptoms does a female dog with eclampsia show?

The most common symptoms include trembling, muscle seizures, weakness, restlessness, and in severe cases, convulsions. The female dog may also appear lethargic and have difficulty walking. If eclampsia is suspected, a veterinarian should be consulted immediately. -

How is eclampsia diagnosed in dogs?

The diagnosis is based on clinical symptoms and measurement of blood calcium levels. A veterinarian can quickly determine through a blood test whether a calcium deficiency exists and take appropriate measures. -

How is eclampsia treated?

Treatment typically consists of intravenous administration of calcium to quickly raise blood calcium levels. In severe cases, medications to control convulsions may also be necessary. Close monitoring by the veterinarian is important to avoid complications. -

Can eclampsia be prevented in dogs?

A balanced diet during pregnancy and lactation can reduce the risk of eclampsia. It is important that the female dog receives food specifically tailored to the needs of pregnant and nursing female dogs to ensure adequate calcium supply. -

Which dog breeds are particularly at risk for eclampsia?

Smaller dog breeds tend to be more frequently affected than larger ones. This is because they require relatively more calcium to maintain milk production. However, the condition can also occur in larger breeds. -

What long-term effects can eclampsia have on a female dog?

If eclampsia is treated quickly and effectively, the long-term outlook is generally good. However, untreated eclampsia can lead to permanent neurological damage or even death. Early diagnosis and treatment are therefore crucial. -

Can eclampsia recur in dogs?

Yes, a female dog that has suffered from eclampsia once has an increased risk of developing the condition again in future litters. Careful monitoring and preventive measures can help minimize the risk. -

What should dog owners do if they notice symptoms of eclampsia?

If you notice symptoms of eclampsia in your female dog, you should consult a veterinarian immediately. Rapid treatment is crucial to protect the female dog's health and avoid complications. -

Are there alternative treatment methods for eclampsia in dogs?

While calcium administration is the primary treatment, alternative approaches such as homeopathic remedies or acupuncture can support the overall health of the female dog. However, it is important that these methods are used only as a supplement and under veterinary supervision.