What is the reason for black and purple lips? It turns out to be related to these two causes

Under normal circumstances, people's lips are light red, or may be darker, but if they appear black and purple, it is abnormal. It may be related to some non-pathological factors, such as drugs, weather, etc.; it may also be caused by some pathological factors, such as pneumonia, constipation, chronic hepatitis, etc.

1. Black lips are related to some non-pathological factors:

1. Medication: Taking certain anti-inflammatory drugs or other drugs such as norfloxacin recently for a long time may cause the lips to turn dark and last for a long time.

2. Weather: Long-term exposure to cold environment may cause cyanosis of lips, but this blackening of lips is only temporary and will return to normal color after staying in a warm room for a while.

3. Fatigue: Lack of rest recently and irregular sleeping hours can lead to poor blood supply in the body, which in turn causes the lips to turn dark.

4. Diet: If the gastrointestinal function is poor, digestion and absorption are often poor, and appetite is poor, it may cause dark lips over time.

2. Some pathological factors of black lips:

1. Clinically, poor kidney function, heart disease, pneumonia, constipation, diarrhea and other diseases may cause black lips.

2. Liver disease can cause black lips. Clinically, patients with chronic hepatitis and cirrhosis often have liver disease features, which are not only manifested by black lips, but also dull skin and dark complexion. Some patients may have panda eyes, collar sign and other signs.

It can be seen that there are many reasons for black lips. In diagnosis and differential diagnosis, it is necessary to comprehensively analyze the medical history and corresponding examinations. Only by targeting the cause can correct treatment be carried out. Do not jump to conclusions blindly, which is not conducive to the relief of symptoms and the treatment of the disease.