Stool Color Changes (cont.)
Benjamin Wedro, MD, FACEP, FAAEM
Benjamin Wedro, MD, FACEP, FAAEM
Dr. Ben Wedro practices emergency medicine at Gundersen Clinic, a regional trauma center in La Crosse, Wisconsin. His background includes undergraduate and medical studies at the University of Alberta, a Family Practice internship at Queen's University in Kingston, Ontario and residency training in Emergency Medicine at the University of Oklahoma Health Sciences Center.
Bhupinder Anand, MD
In this Article
How is the cause of stool color changes diagnosed?
In most cases, a diagnosis, if any, cannot be made by stool color alone.
The patient and the doctor need to consider other symptoms, past medical history, dietary changes, and medications to help decide what has caused the stool to change color. Physical examination will be important to help decide the significance of the stool color.
Stool may be tested to look for blood, fat, or infection. Blood tests may be necessary depending upon the clinical situation. Depending on the change in color, it may be necessary to evaluate the pancreas, liver or GI tract.
When should I contact my doctor about stool color or texture changes?
Aside from black, red, or maroon stools that may signify bleeding and require urgent assessment and treatment, most color changes are not an emergency. The significance is determined based on other symptoms that might be present.
Women who are pregnant often note changes in their bowel pattern. Stool can turn black because of iron and vitamin supplements. Iron can also turn stool greenish. As the uterus enlarges and increases pressure within the pelvis, constipation may occur and hemorrhoids can develop and cause blood in the stool.
If there is no underlying problem, stool color changes are often due to changes in the diet and will resolve in a couple of days. If this is not the case and changes persist, it is appropriate to contact your doctor and seek medical attention.
It is important to remember that every person is different and changes in bowel habit be it color, size, frequency, or consistency (hard or soft) may be normal for one person or a sign of a potential problem for another.
Stool color chart
Medically Reviewed by a Doctor on 9/16/2015
Viewers share their comments
Stool Color Changes - Color and Experience Question: What color, texture, or smell; is or was your stool when it changed? Please share your experience.
Stool Color Changes - Symptoms Question: What symptoms did you experience with changes in stool color, texture, or form?
Stool Color Changes - Contacting a Doctor Question: What prompted you to contact a doctor about changes in stool changes?
Stool Color Changes - Causes and Diagnosis Question: What was the cause of your stool to change (in color, texture, odor, etc.); and how was the diagnosis of the cause made?
Stool Color Changes - Causes Question: What was the cause of the changes in color, texture, or form of your stool?
Stool Color Changes - Size and Shape Symptoms Question: What symptoms did you have with changes in the size and shape of your stool, and if known, what was the cause?
- Allergic Skin Disorders
- Bacterial Skin Diseases
- Bites and Infestations
- Diseases of Pigment
- Fungal Skin Diseases
- Medical Anatomy and Illustrations
- Noncancerous, Precancerous & Cancerous Tumors
- Oral Health Conditions
- Papules, Scales, Plaques and Eruptions
- Scalp, Hair and Nails
- Sexually Transmitted Diseases (STDs)
- Vascular, Lymphatic and Systemic Conditions
- Viral Skin Diseases
- Additional Skin Conditions