During surgery, anaesthesia prevents you from feeling pain. Drugs or other chemicals that cause you to lose feeling or awareness are referred to as anaesthesia.

• Local anaesthetic creates numbness in a specific location of the body.
• Regional anaesthesia causes a loss of sensation in a specific body part, such as an arm or leg.
• General anaesthesia induces numbness and a full lack of awareness, resulting in what appears to be a very deep slumber.
• There are other methods of surgery that do not involve knife cuts.

Here are a few examples:

Cryosurgery:

Cryosurgery is a method of treatment in which aberrant tissue is destroyed using intense cold created by liquid nitrogen or argon gas. Early-stage skin cancer, retinoblastoma, and precancerous growths on the skin and cervix may be treated with cryosurgery. Cryotherapy is another name for cryosurgery.

Laser:

This is a treatment in which strong laser beams are utilised to cut through tissue. Lasers can focus very precisely on small locations, making them ideal for precise procedures. Lasers can also be used to shrink or kill tumours or growths that are on the verge of becoming cancerous.

Lasers are most commonly utilised to treat malignancies on the skin's surface or the inner lining of internal organs. Basal cell carcinoma, cervical alterations that could lead to cancer, and cervical, vaginal, esophageal, and non-small cell lung cancer are just a few examples.

Hyperthermia:

Hyperthermia is a treatment that involves exposing small regions of bodily tissue to extremely high temperatures. The extreme heat can harm and kill cancer cells, as well as making them more susceptible to radiation and chemotherapy treatments. Radiofrequency ablation is a type of hyperthermia that generates heat using high-energy radio waves. Hyperthermia is a treatment that is currently being researched in clinical studies.

Photodynamic Therapy:

Photodynamic therapy is a method of treatment that involves the use of medicines that react to specific wavelengths of light. These medications become active when the tumour is exposed to this light and kill neighbouring cancer cells. Skin cancer, mycosis fungoides, and non-small cell lung cancer are the most common conditions for which photodynamic treatment is used to cure or relieve symptoms.