Black blood from the vagina can be caused by cold or gynecological diseases, so do not treat it blindly. It is important to go to a regular hospital for examination and choose the right way to improve your health according to the doctor’s diagnosis and recommendations. Women’s bodies are more sensitive during menstruation, and their constitution is relatively poor, so try not to catch cold, pay attention to warmth, and also pay attention to a reasonable diet, try to eat more light food, ensure balanced nutrition, avoid overwork, and maintain a good mood, which is also conducive to improving the symptoms of menstruation. If there are other gynecological diseases, you should also seek timely medical attention.