Weak pulse may be related to low blood pressure, subclavian artery stenosis, pericardial effusion, etc. It can be treated with general treatment and medication. 1. Low blood pressure: Low blood pressure caused by weak constitution can be enhanced with nutrition. Appropriate exercise should be done in normal times. If necessary, fludrocortisone, octreotide, midodrine, guar gum and other drugs can be used for treatment as prescribed by the doctor. 2. Stenosis of subclavian artery: caused by atherosclerosis, it can be treated with statins (atorvastatin), anti-platelet aggregation drugs (aspirin) and other drugs under the guidance of doctors. Stent implantation can be used if necessary. 3. Pericardial effusion: Pericardiocentesis and drainage can relieve cardiac tamponade. The above medications are recommended to be used under doctor’s supervision. There are many causes of weak pulse, it is recommended to go to the hospital in time and follow the doctor’s instructions for timely treatment.